2 options. (but first - I try not to let the gliders bite me until they get tame enough to not bite me, or its only a bloodless nip.)
1. buy dried mealworms and give them to him as a bonding treat.
2. buy LIVE mealworms and give them to him, make him work for it, as a treat, but every so often make him come to you or on you more.
Our first glider pair, Link was very slow to bond with us, I started using dried mealworms to get him to come to me, then he had to step on my arm, then after some time I got him to sit on my arm to eat his mealies. (no more scooping him up and sometimes getting nipped.) Then I carried him to kitchen to feed him LIVE mealies on my arm then back to cage. Now at 11pm they wake up and mealie day or not they are jumping on cage front at the moment they see me, they run from side to side of cage following me hoping to get out and on me for mealie time.
mealies are fattening so keep the amount they get small.
I'm sure they are other ways to get them to you, my wife isn't big on treats, her glider gizmo with come to her get in her bra and hang out with her never getting a treat sometimes, just being with her since they are well bonded and she did it with only a few treats from time to time.