Greetings fellow trainer! I like to get my chams on my hand or arm, then I just place my hand into the cricket bucket. Sometimes (only with worms, because crickets spit a nasty slime) I hold a worm in between my pointer and thumb. I give the cham about 10-25 seconds to take a shot... If he/she does not, then I put the worm away. Its best to try this with waxworms anyways because of how tasty they are...? I guess they are like candy for some chams, so they regularly jump at any chance to munch on them. Keep on trying, it takes some time.