Bonding with boys

Today, for the out of cage time, I went down stair and used my dining table. It worked out ok, too. They cannot jump off from table since it is pretty high. I wonder what is the best way. I also spot cleaned again today since I felt like it is getting smelly. I wonder how to teach my boys potty. I guess I have to try and see and also my boys are still pretty young so maybe that is why. They poop even when they are out of cage, too. I hope this will improve as they get older.