it is super easy all you need is some sort of organic dirt (peat moss or eco earth both work well) and some plants that can be real or fake for him to hide in. A small water bowl filled with distilled water only is also good to have. Also, spay him daily so that it is always nice and damp in there. Again, only use distilled water, tap water will kill it.
Feed it crickets, I would put 2 or 3 in every few days. Make sure there is some sort of lid so that he can't escape and it helps to have about half of the screen top covered to keep humidity in (a damp cloth or ceran wrap are good for this.)
Good luck.