awww hugs! don't worry--it's just that he or she doesn't give trust you yet--it's only natural, how would you feel if a giant hand descended toward you every day?
don't worry, just keep being gentle, talk softly, and he'll get used to you. remember, their cge is their safe-haven, so when you intrude upon it, they feel unsafe. just give it time and he'll begin to trust you and realize that you're not going to hurt him. good luck!