If you know a guy liked you 1,5 years ago. You know that your appearance is exactly his style. When you reunite after this time and he is open with everyone and with you he seems more closed and hesitant. The way you reunited was you being with your friends and your best friend knows him and says to him and his friend to tag along and they do for four hours and then you all go home. While he called his friend to go for a walk and decides to stay for four hours. When you see him suddenly and you say "hello-his name-" and he seems pleasantly surprised greets you "hello-your name-" and seems happy about it. Or you are in a circle making up a story for a game you're playing and he has one hand around his friend's shoulders (guy friend) and one around yours.