Picking up my leopard gecko?

I got a leopard gecko about 2 weeks ago and he\she seems really settled in and is eating a lot so I want to pick him/her up to find out its gender. It is REALLY skittish and shy. Its a Juvenile and very energetic. I have been putting my hand in the cage and he seems to be interested for a few seconds then either lays his head down or turns around but he has never come out to crawl on it or lick it. If hes walking around when I walk in to my room he will go to his hide pretty quick he doesn't run but its a little faster than walking. please help thanks