What you need...
20 gallon tank long
hot hide, cool hide, humid hide
solid substrate such as paper towel
water dish, mealworm dish, calcium dish
heat mat with thermostat
thermometers (or just one if you get a laser one)
calcium dust (I highly recommend Miner-All Indoor)
viewing light is optional....if you get a viewing light, get a 2.0 UVB or regular fluorescent light bulb from home depot/lowe's
Make sure you have a separate hot side and cool side.
Feed a combination of a few of the following...dubia roaches, crickets, mealworms, phoenix worms, SMALL amount of waxworms as a treat is ok but not necessary.
What I do with my geckos to interact is open the front of the cage (sliding doors on the front) and allow my leopard geckos to come out onto my hand on their own most of the time. Unless I'm checking on them health-wise or cleaning their cage, I rarely "grab" them. Obviously, it will take time for a baby to get used to you. I then let them climb wherever they want on me. Up my arm and on the shoulder is where they like to hang out mostly. I also breed mine, so I do lift them to check the females' bellies for eggs.
own 5 leopard geckos and 4 eggs