How do people know...?
828708
mostly they have a huge vocabulary,might've learned it in school..\ncould also be slang which is not always real...
953229
The serious answers are hilarious!\n\nActually, how could they see! Duh! LOL!!
496385
everybody does, even if they don't know it
404985
There is no way we can. Some people refer to faith, knowledge is not faith. Faith is a belief, just like I believe chocolate tastes nice. \nSo in the end.. there is no way to 'know'.
186275
Um... you really can't know for sure just by actions. You have to ask them.
564457
WATCH AND FIND OUT DUHHHHHHHHHHHHHHHHHHHHHHHH!!!!!!! HOW THE HELL ARE WE SUPPOSED TO KNOW?????
1059397
Who want's to know ???
287826
The same way they tell if people can see. They wave something in front of their eyes and see if they follow it or not.
694673
how the hell should we know
505743
i dew not know, does anyone know??
161389
there is no sure-fire way to tell.  some clues if you're with the person: they won't look you in the eye when they speak to you.  long drawn-out sentences.  confused inconsistent stories.  trust your intuition and judgement, if you think someone is lying, there is a reason for that.
676669
who cares and who knows???
485240
well i dont know.. but want to know
1090706
I don't know.  How can you know?  Look it up.
538969
No one knows the anwer to that!\n\nOf course, that doesn't prevent people from thinking they do!\n\nIt's amazing how much people don't know they don't know!\n\nGood question.  Maybe someday you can answer it and become famous! :-)
1029827
How would we know, we don't know these people!
292735
The easiest way to know if a person is nice or not is to watch and listen.\nEven if someone tries to fool everyone into believing that they are nice, if they are not so nice, this will come out.  Nobody can hide the way that they are all the time.  Eventually, the person will do something which does not seem so nice.\nNice people are usually nice all the time.  They have manners.  They do not try to hurt others.  They usually are more careful about what they say.