If he is sincere and a nice guy who truly likes you, then you can tell by the way he looks at you, goes out of his way to do nice things for you that he would not normally do for others. or just ask him.
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If you want to know if he likes you:
1) He stares at you a lot and smiles!
2) He makes fun of you or is mean (sometimes this is a sign, some guys behave when they like someone)
3) The guy you like flirts with you a lot.
Tips:
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The only sure fire way to know is to ask him.
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How do you know if guy likes you or he is just being friendly towards you? Does he flirt with you a lot? If so, he may like you. Does he have long conversations with you?Iif so he may like you.
More Answers
There are several different indications that someone may be "into" you.
Males often make fun of, tease or bully females they are attracted to as they feel it may draw the girl's attention and/or hide their attraction to her from others. This is most often seen in younger age groups however it can sometimes continue in later years.
For the most part, however, when someone is attracted to another person they usually try and get to know them better by spending more time with that person. They ask lots of questions to show interest and make them feel appreciated and that their listening, making jokes to try and make them laugh and complimenting them or noticing things about them that others don't.
Physical symptoms of attraction inlclude lovesick staring with"moony eyes", accidental touching (fingers brush, etc.), flipping glances when they think they're not being watched, the "once over" with appreciative results, smiling lots in your direction and, in some cases, blushing, stuttering, etc.
when he says he likes you.
iam in love with this guy but i do not know if he likes me or some other girl
If a guy likes you but you don't know him he may look at you or walk by you whenever possible.
http://www.wikihow.com/Know-if-a-Guy-Likes-You
Not sure how you expect someone to magically know something.
It is ok to like a guy after you know he likes you. That is perfectly normal and a part of life.
You ask the guy.
don't
When he has a penis.
his eyes will open wider if he likes it
You will know if a guy likes you because he will ask you alot of questions and he will try to get to know you better,but don't think that just because he talks to you that he likes you,make sure that they are the right person!!!
If he says i like you