You can breed ostriches, but they don't function like normal mobs. Ostriches lay one Ostrich Egg every time it is bred, and these eggs take time to hatch.
With a Microsoft account, it's easy to find your friends from Lifeboat. Just add their gamertag or click on their username from the Minecraft pause menu and.
Simply find the dye in your inventory and put it in your hand. Then, all you have to do is hold down on them like you would hold down on a block when you want.