Opened mouth at me while not basking?

[graceface]

I was trying to entice my little girl to eat a piece of collard, and she was looking up at me and then just opened her mouth a little. Not very wide, but just a small amount so I could see her tongue. There was no hissing or lunging. I tried putting the collard in her mouth thinking that was what she wanted but she spat it out. Is this an aggressive behavior? I know she wasn't basking because her light was off.

 

[CooperDragon]

They sometimes open their mouths a little like that even when they're not basking. If it isn't accompanied by other behavior like black beard, head bobs, or puffed beard then it's not likely aggressive.