The best way to feed is with tongs, pacmans can be clumsy hunters especially the younger ones. I have frogs that never miss and also a juvenile that never hits. So I reach them the food with tongs and this way they always get fed.
By the way, I read that you hand feed crickets, do you actually mean with your hand? Because that would be scary for a pacman, a giant hand infront of it's little head.