Bird Man Mel provides a few tips on attracting naturally-shy orioles and getting them to nest in your yard. He discusses how to feed orioles with oranges, grape jelly, and nectar from a bright orange oriole feeder. He also discusses which materials to provide (yard, hay) to coax the orioles to nest in your yard.
Video - Bird Man Mel's Attracting Orioles
great video with instructions on how to attract orioles to your yard