Thanks for the tips ladies. I'm going to try the same colored cup everyday for each child, and just try to be as consistent as possible, hopefully he'll get it sooner rather than later. The funny thing is I know he can share....he just doesn't want to....if he's asked for a toy he is playing with, he will willingly and nicely hand it over to anyone who asks. But as soon as he does the tears start flowin', and just as fast as he gets it back, he'll stop. And I've tried to show him how to take turns and share with him, myself and a 13 month old and literally for ten minutes just passed a toy back and forth between the three of us every time asking nicely and saying thank you for sharing and other praises; but as soon as he got back to playing, the crying, screaming, hoarding boy was back. It's like the last ten minutes were just a fun little game, didn't learn a thing from it.......pass the Baileys! LOL