From what I know, lizards don’t have very complex social interactions. At most, like with green anoles, they will live in groups but only interact when mating and otherwise leave each other alone.
I recently got a girlfriend for my male green anole, who I’d had for a few months. Prior to getting her, he had started to turn brown and yellow more often than he used to. After introducing them though, he has been green more often again. Nothing about the enclosure has changed except for the addition of his girlfriend. The past couple days, they have also been sleeping together. Not mating, but sleeping against each other on the side of the enclosure, tail to nose. I have seen their mating behavior and this does not match up. There are plenty of other spots for them to sleep that are the same temperature, humidity, and with the same cover, and they used to sleep far from each other when I first introduced them. Temperature and humidity are proper everywhere in the enclosure, and temperature on either of them is the same, so they wouldn’t be transferring heat. I’m not very sure why they would do this. Any thoughts?