I open it slowly every time. He would venture out around the room the first year, but now he seems to just stay in his corner about 99% of the time. I spend a lot of time with him. A LOT! He stays in that area. I have had him for almost 2 years now, my first reptile pet. The worst lesson I had...
Here are some pictures of him outside today. Not the best weather right now in Jacksonville, Florida - but he enjoys climbing on the trees and exploring the yard.
Humidity is high in Florida, he spends a lot of time outside in the backyard - and near the open window too. He gets a lot of sunshine, and has been doing good, besides that burn on his back, etc.
Using bamboo and climbing rope with some zip ties... you can make a variety of chameleon climbing setups. Here is a version of a lean-to for my Veiled Chameleon.
He takes a while to find sometimes, but he is usually in his main spots. I used to have the whole corner of the room for him, but I grounded him to just 2 feet from the ground, he isn't climbing very well these days since a spinal injury - but he is getting better
My veiled chameleon rubbed raw his spines on his back by pushing through a narrow path near the ceiling, popcorn ceiling painted white. His spines turned black, and a narrow area of dead skin showed up, then the area began to heal, and now it looks like his injured spines are beginning to fall...