Constantly looking in mirror, spending obcenely long times in privacy, constantly fussing about his looks, and so many others.
You could observe him in front of other girls, or you could just ask him
He's not the one who gets the signs - she is.
He tells you.
Your a goner
Looks at you a lot
What_are_the_signs_that_a_guy_likes_you_back
A guy always complain about you have guy friends... that's the best sign there is.
Same as a guy liking a single woman.
he keeps teasing you, and intereferes with you continuously................
They are talking with you in a really nice way
he would be constantly looking at you
a guy is a mommy's boy when she begins to interfere in his love life