can anybody ever know if they are in love?

can anybody ever really know if they are in love? it is so hard to know these things. do you just sort of feel different when you see that special someone? do you somehow get some kind of signal? do angels start singing? gods and goddesses? prophets? little kids? what? they never tell us. nobody tells us. they ask us why we would ever want to know. is there any way to ever know? i doubt it, because if there had been a way, then there were someone who could tell me if i am in love with anybody. but what is love? i want to know what love is! i want you to show me!