B.J.
What we had to do is just keep trying every day. We tried different bottles until we found one that he seemed to be most comfortable with, but even then, it took a while to get him to really do it. I pumped a "practice" bottle every day, and eventually he learned to take it. I had to keep giving him his practice bottle daily, though, or he would stop taking it. It was a lot of work to pump that extra bottle on top of the milk I had to pump for him to eat while I was at work (I only work 2 days a week), but it was the only way to do it!