Please help me Is it wrong to be timid (shy) when around the guy you have a crush on even though he's really nice and smiles when you blush and look away?

Not really but shows a sign of weakness to him that he can make you do that by just looking at you especially if he isn't at all interested in you. Sometimes you try your best not to show emotions to any guy as that tells him how you feel and makes you an easy mark for him even when he really doesnt care so acting shy and embarassed and such is all fine and dandy for little girls, but one day you will grow up and understand all this