Out of my four birds, Charlie is definitely the friendliest. I think it's due to the fact that he's older. But anyhow, I left the doors to his cage open (with all surrounding doors shut) while I changed his food/water, and he decided to come out and explore for the first time. Oscar didn't, though. I sat down in the room and watched him fly around, then he came to perch on me
He sat there long enough to pose for a picture, so I thought I'd share! He's such a handsome boy!