While I am not all that familiar with lizards, you can call a pet shop and talk to them about it. They would know for sure if you call one that deals strictly with lizards. Hope this helps.

 Most lizards Ned a heat lamp or heat rock, a place for cover, and eat crickets. Since you think it is a leopard gecko all of the previous is in fact true. Picking up a book on geckos would be helpful. You should definitely have someone who knows what they are talking about identify they lizard. Most employees at pet stores know what animal is what because of the signs on their cages. Try contacting a reptile specialist at a zoo, vet, or pet store specializing in reptiles.