My IRNs are very friendly indeed, one being a bit more shy and "untame" than the other, but we're starting to get somewhere.
My old man ringneck Nicko was already very tame and used to people when I got them both, so after a few days he decided I was OK, and now he's probably the most affectionate of my birds (towards me).
Meg, on the other hand, is only almost a year old and spent her first 9 months in an aviary, with very limited human interaction, if any at all. Despite this, she's starting to come around pretty well, with the help of positive reinforcement and a lot of effort from and interaction with me, and also observing Nicko being all cute with me. Watching him, I think she realized maybe people aren't that awful after all - he seems to like them. (Though they're still awfully scary when they
don't have treats in their hands, she thinks

)
I however hear you do need to interact with an IRN a lot, and daily, to "keep them tame" - I don't know much about this since I always hang with them a lot every day already

Something to think about though. They ARE a lot of work in general, and need a lot of work and attention, especially if they're not already tame (as in actually used to humans and being handled by them, NOT as in a handfed baby) when you get them.
