How to know if a guy likes you?

You don't have to love in words, even through silences love is always heard.
ACTION speaks louder than words, is a good dating advice.
Don't wait for words, look for ACTION.
You just have to look for positive signs, or buying signals if:
-he comes close to you
-he tries to make you laugh
-he asks you questions
-he tries to make you talk about yourself
-he asks for your phone number or Email
-he tries to demonstrate in the conversation his men's qualities
-he offers help
-he gives you a compliment
-he blushes when you talk to him
-you see he gets nervous when you're around
-he's nervous while talking to you (hands, eyes, voice...usually you can notice because he's doing too much)
-he plays with an object (pen, glass...)
-he can't help looking at you, and when you look at him: he suddenly looks in another direction
-he can't help making eye-contact with you
-he reveals his feelings in a disguised way, and say: just kidding
-he tries to be with you
-he offers you something
-he makes an effort with his outfit
-he tries to be more hansome (new clothes, shoes, watch...)
-he fakes jealousy for fun
-he invites you indirectly or he suggests any activity
-he likes to borrow anything from you, (pen, rubber, clothes...)
-when there's nothing left for you, he says: you can take mine
-he asks you for help when he could ask somebody else
-he likes your firstname and likes to pronounce it
-he likes your clothes
-he wants to be with you
-he wants to hear your voice
-he likes to be close to you or in your space
-he's usually looking at you
-he's looking at you when leaving a room
-he gazes in your eyes with love