if you handfeed him. make sure its a shallow bowl. feed him over the top of the bowl then with one ofyour mealies put it in the bowl and see if it takes the mealie when you drop it in. try this in teh middle of a feeding session. and then next night make it eat more from the bowel. just so it acosates the area of the bowl with food. then when you think hes ok with the bowl just leave your mealies in the bowl becaue hell go to that area for food. and if its hungry it wont be too choosey about the bowl.
thats just my idea of almost training you gecko. ive only ahd my gecko just over 2 weeks and it already acociates a certaina rea of its tank with food. tho i feed crix but i think that may work. people whove had this experiance will be better able to reply