I too have enticed/befriended a group of Steller's Jays at my weekend cabin. I've always put out seeds for casual bird watching and about two years ago started giving them peanuts as well. I make sure to give a distinctive whistle for that extra Pavlovian effect. Many are quite accustomed to me, will come within 5-8 feet to snatch a tossed peanut. Over the last year, they often greet me when I drive up with some calls, or usually come when I whistle if they're not around. The two resident black Abert's squirrels also come up for the peanuts, often by my feet.
They are also several ravens in the area, often staying at tree top level, 60-70 ft. I've never been able to get their attention. even with peanuts. I'm guessing they just don't see the action at ground level, too many trees, or feel safer higher up.