Charlie (RIP), my adopted Canary-Winged Parakeet, and Jasper, my Pineapple Green-Cheeked Conure play Ring Around the Rosie, where my head is the "Rosie."
These guys have such different personalities. Charlie is shy and reserved. Jasper is outgoing and klutzy. Jasper talks up a storm, but I have to learn Charlie's language.
Their flight feathers were clipped when I shot this. Now, they are almost fully flighted. They play this same game, but by zooming around the house instead of my head.
Charlie is still shy. Though he seems to avoid him, he really does like Jasper. They're like adolescent cousins.
Update in 2012: One thing I first noticed yesterday: Charlie and Jasper "grazing" together. I only noticed because they were both making cute sounds I'd never heard before.
They are real pals, even though they occasionally squabble.