i just got a new leopard gecko.....and?

[nycguy0202]

i just got a new leopard gecko and he doesn't seem to eat much or drink, he just sits in the hiding cover. I turn out the bright light every night and when i wake up there a good number of crickets gone, so he must eat at night...but still. how do i know if he's eating and drinking. he has only been in my room for three of four days and he's a juvenile