you will react in one of two ways--either by becoming really shy and tongue-tied, or by becoming really outgoing.
the shy reaction: do you suddenly feel like you might like to curl up into a ball when your crush is around? do you blush incessantly and can’t seem to raise your eyes up from that suddenly very interesting speck of dirt on the ground? do you suddenly feel like you don’t have anything witty or interesting to say? all of these reactions point towards having a crush.
the outgoing reaction: do you suddenly feel the urge to tease your potential crush? when they are around, do you get the sudden urge to 