When I first started I just offered it a few times a day. Then I took away his midday bottle and only offered the cup, sometimes it worked sometimes I eventually just gave the bottle. But, try to offer the cup when your little one is not already fussy !!!!! After almost a month of offering the cup I knew he was familiar with it then I started giving him snacks in between meals (applesauce, banana, etc) and took the bottle away during the day. After about a week he adjusted and I only offered the bottle at nighttime feedings. Then I started his bedtime/bath routine 20-30 minutes after dinner offering only the cup right before his bath and NO bottle after three days we were DONE with the bottle !!!!!!!!!!

Oh, and during the day I tried diluted juice or formula. Whatever fit his attention.

My little man won't take sippy cups, only will do straw cups.

Shaylee would never take a bottle from anyone but she likes sippy cups. And my oldest I just gave her her first sippy cup at 7 months and she drank it no problem.