I agree with amethyst, each hamster is unique in what they like/dislike and how they express this. I would just keep working with him, eventually she'll become more comfortable with you. My hamster, Duncan, was very skittish when I first got him, but now he could care less what anyone does. I could lift him out of a dead sleep without any problems (although I never do, and you definitely shouldn't do this!). Over time, hamsters calm down and become more used to you so no need to stress. Good luck with taming, and if you have any other questions, please ask