if you want to get a small lizard, look at crested geckos over leopard geckos. You will see more activity out of them during the day. And dont even bother with a fat tail, the things are only active at 3am or so. (i know this cause i havent seen mine outside of his in 3 years) Cresties take very well to handling and are readily available. As long as your house does not get too cold they can do without a heat lamp (helps to offset initial cost as cresties cost more than leos).
If you want to go larger, beardies are a great option, but be aware of much higher setup costs, mainly due to lighting. They will get 18" long so you will need to have space to house it.
Pm me if you want me to expand more on this.
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