I give him treats when he comes to me in the pasture, when I put the halter on, after I take off the saddle and bridle, and one after I put him in the pasture.....usually
Now at the moment I'm teaching him that being with me is a really good thing so he's getting more treats than I'd normally give him in a week....now not for just looking pretty of course. I'll have him do stuff....I'll play some games. I'll run around in the pasture and have him chase me and so on then give him a treat if he stops when I tell him to stop (meaning stops when I stop...and he's catching on to that fast)
But once we get the problem sorted out and he doesn't always associate me with work (what I'm doing now is one day I'll ride him, and the next time I'm up I'll just do some fun and games stuff with him, and I'll mix it up and plan ahead on waht we are doing.)
I rode him today because the BO wanted to show the young girls that were there for a field trip "how a good rider rides" (direct quote from her though I wouldn't even consider myself a good rider at all) and I did some different patterns with him...I did a star pattern (which looked fairly nice if you looked at marks his hooves left hehe), and some zigzag patterns and walked through the puddles in the arena to get him used to water, and then just walked him around the arena to cool him off.
But we had a fairly decent day....nothing horrible at least