Have you guys had any problems hand-feeding your leaf frogs worms?

I'm a little worried that I haven't seen my guy eating yet. When I brought him home and had him in the kritter keeper while I got his tank ready (because of how late I got home, he actually spent overnight in that kritter keeper), I threw in 2 crickets. He didn't eat them. When I put him in his home though, I only found one cricket, and no trace of the other. A few days later, I can't find the other cricket, but that's not a definite sign the frog ate it. So I tried a mealworm, and he wouldn't take it from my hand, so I put it on a leaf next to him, and after a minute he hopped away. I guess he could just be shy about being seen eating.