How old is he? I started giving mine a sippy cup (straw type) for juice and water around 6 mo. It took her a couple of months to really get the hang of it. They say, once they're taking a couple ounces out of a sippy, they're ready to be weened from the bottle. I weened my daughter at 1 year (which I highly suggest...they start getting more opinionated and difficult after that first year so any major changes become much more of an effort). I just did it cold turkey. I continued to warm her milk and continued to sit down with a blanket on the couch (like I always did with the bottle) ..I just offered a sippy cup instead. She fought it for about 4 days...I just increased her other dairy servings to makeup for the milk she wasn't getting (cheese, yogurt, etc.) and by day 4 she realized I wasn't backing down and we've been fine ever since.
at 2:32 PM on Oct. 13, 2009