what weight machine or exercises  i should use to tone my legs?
956795
Good old fashion squats. The key is to push up with your heels after you squatted. It works the butt and the back of your thighs. Or you can climb up and down the stairs 5 times. Both are free :)
590858
The smith machine.  Do lunges and squats.  Enough weight so you can feel it after 12 reps.  You will really work your glutes.
500006
Great answers so far!  I can only add that you might want to look into doing exercises that will help you build strong core muscles. Pilates (as suggested in Marie's answer) is an excellent way to start.\n\n(Pilates was designed to help dancers rehabilitate from injury.)\n\nPilates does not include weight bearing exercise, or cardio... so pairing it with another activity is typically recommended. Check out swimming, circuit/weight training and walking/running.\n\n\nBy using those muscles in a different way, you will develop a greater awareness of how to use the muscles, making "standing straight" easier.\n\n[Psst, also check out your choice in bras.  A good fit makes a big difference.]\n\nAll of these exercises can be done at any fitness level.  So no matter where you are now, you can safely get started whichever one works for you.\n\nPilates was developed as a rehabilitation tool for Dancers.  Wikipedia has helpful links and background information:\n\nhttp://en.wikipedia.org/wiki/\n\nIf you are interested in learning more about which exercises will bring you the best benefit, the ExRx website is a handy reference:\n\nThe beginners section has tips and guidelines for starting any new activity\n\nhttp://www.exrx.net/Beginning.html\n\nThe Exercise and muscle directory is organized and cross linked by both exercise and muscle.\n\nhttp://www.exrx.net/Exercise.html
489778
You'll need to be strong.  \n\nExercise your calves by standing, then lifting your heels up and down: up, pause, down.  up, pause, down.  You can start by holding onto the back of a chair for balance if you need to. \n\nTo strengthen your quads, do lunges.  Step forward and dip your back leg, keeping your front leg at a 90 degree angle. \n\nYou'll also want to strengthen your inner thighs.  Do leg lifts lying on your side or get an old Thighmaster.  Or if you go to a gym you can use the thigh (and other leg machines) there. \n\nMake sure you lose weight healthfully.  Gaining muscle will help you lose the weight.  If you do increasing numbers of repetitions with little or no weight, you will get stronger without getting to bulky or heavier.  \n\nYou'll want to keep you core strong too (abs).  it wouldn't hurt to strengthen your arms too.  \n\nAlso - if you are working at a track, ask some of the exercise riders around there. \n\nGood luck to you.
454661
I would definitely say Pilates. This exercise uses gravity to tone your muscles. One for the legs is:  Lay on your back, flat. Lift one leg in the air and make the letter P. That is just one example. I believe that Pilates is one of the best ways to TONE muscles, Not build
1035196
I prefer yoga, pilates, and leg lifts.  Don't freak out, just work on it.
709174
Treadclimbers and stairclimbers should give similar results to a treadmill.  Ellipticals are still the exercise equipment of choice, due to their low impact cardio workout and upper body toning.  I've only heard of users hurting their ankles on ellipticals that don't have pivoting foot pads.  Rowers are also excellent since they provide a no impact cardio workout, while giving you upper body toning.  Exercise bikes are also a consideration, but you won't have any upper body toning.
561798
Walking, jogging, dancing, elliptical, cycling, stair climbing, and the crossramp machine will help tone your thighs.  You may be built with a pear-shape body so even though you want to greatly reduce your thighs, you may never get it proportional unless you have surgery.  I don't recommend surgery.
377161
avoid exercises that result in repeat impact to your knees: jumping, running, jogging, etc. Try using an elliptical where you never remove your foot from the surface and you are using your thighs and calves. \nDespite the advice you may get about using weights or floor exercises, it's better for you to do cardiovascular exercises than to do things that will build up or tone muscle- you don't want big thighs right? You want to burn fat and maintain a healthy heart so stick with the cardio work up that will avoid further injuring yur needs. Swimming is great but not readily available. If you have access to a pool year round (and don't mind ruining your hair)- go for it! Otherwise, Try the elliptical.
961986
I suggest that you head out to your local gym and do some exercises on the leg machines that they have there. Light weight with more reps will definetely tone your legs and get your legs in shape. And remember to eat good amounts of protein in meat and stay healthy!
475048
leg lifts to the back:  stand with you hands on your hips, feet slightly turned out.  Point one toe behind you and lift your leg behind you in a slow controlled motion.  Bring it back down to a point and repeat.  Do 15 reps per leg for a full set.  Try to do 3-5 sets a day, its really easy to do them while watching tv but you really feel the burn if you do them slow.\nsquats are good, but people commonly overuse their quads rather than giving the booty the attention it needs.
562287
You really cannot do to much in two weeks. It takes a few weeks for your muscles to adjust and get bigger. You should have started working out about a month ago you might have then seen some small results. As for now just try this machine that they have at the gym called stair master. It works damn near everything. Your whole legs your butt. That machine is the best thing invented for the legs. You can also ride a bike and run up and down stairs. Try squats and lunges. I was a ballet dancer for 14 years I had the best legs ever. I quit sadly and now I am on the stair master and it really really helps. good luck!
433217
There is an exercise called donkey kicks!  Get on all fours and kick your leg back extended all the way and then return leg to lower position, and also you can kick your legs sideways too.  It will tone your butt and also give you the curves that most women like. This trainer told my bestirred at the Gym about a year ago. and she looks Well let's just say I wouldn't mind you know....
997907
Running or any other form of cardio, Leg Presses or Squats all of these are great for trimming down those thighs and toning the rest of your legs and buttocks. A combination of these would be best
567441
strengthen your leg and arm muscles.
1051109
Try this three days per week. Mon,Wed,Fri or Tues, Thurs, Sat\n\nSTOMACH\nCrunches w/Knees Bent3x15\nSeated Leg Raises w/Knees Bent2x10\n\nLEGS\nLeg Extensions2x12-15\n45 Leg Press2x12-15\nLeg Curls2x12-15\n\nCALVES\nStanding Toe Raise2x15\n\nCHEST\nVertical Chest Press2x12-15\nIncline Press2x12-15\n\nBACK\nPull Down Front2x12-15\nSeated Rows2x12-15\n\nSHOULDERS\nMilitary Press2x12-15\nUpright Rows2x12-15\n\nARMS\nBicep Curl2x12-15\nTricep Press Down2x12-15\n\n I got this program off www.leehaney.com. Another good site is www.bodyforlife.com. \n\nIncrease the weight on all you lifts by 10% every 2-3 weeks.\n\nHope this helps!
1103766
Try some push ups. They truly strengthen everything: your abs, arms, legs, inner soul (kiiiidding about that last one). You could also do some lunges. They really help strengthen your leg muscles.