I dont know about all of you but when you have someone interested in you cant you feel it.. like just how they look at you or if they seem excited to talk or even if they keep hinting at a compliment about you. Like small things. they smile if they look you in the eye and not a ohh ok please stop talking smile but an actual smile. Or if when they talk to you they try assimilating the way you react to things. Thats been proven because when someone likes somone you in a way change small aspects of youre personality to match theirs. Like write lol after a sentence because they do that or w/e lol ppl wont even realize theyre doing it until you look for it.