good leopard gecko progession!

[mrgoogls]

i got my leo in december(on the 28th) and he/she is very very skiddish. he runs away when i try to pick him up but once i get him i have to cup him so he doesnt jump out and run. (i pick him up to put him into a container for feeding) i used to put him in a container with crickets and leave him in the dark for 15 min then put him back. then i did it in the light so he got used to that. now he will eat infront of my eyes and today even from my hand(his favorites, wax worm!) he is getting better with handling too! im so happy! also, how do you sex them? im afraid if i lift his tail to sex him(how i did my beardie) he will drop his tail and i won be able to see because their tails are pretty bumpy anyways. any ideas?