I play with our gecko Warhol almost every evening. He started doing this thing where he comes to the door if he sees me. He's like a dog that wants to be played with.
If I open the door, he's right there.
Sunny's tank has been left open as well, but he has a top tank. Leopard geckos climb, but not up on the glass. Sunny couldn't get up to the top of his tank even if he wanted to.