Thanks for the replies
I just have a living room and kitchen downstairs. When I'm home he will always follow me everywhere, he usually sits on the floor in the living room or plays about chewing his toy sausages, or my toes or whatever, but yeah he wanders round into the kitchen if he wants a drink of water. Normally after a meal I take him outside and occassionally he does his business on the grass, but most of the time it's difficult for me to judge when he's about to do his business - his main signal is sniffing around on the floor but he does this a lot anyway.
Now I understand that I'm definitely not supposed to let him have free reign and I've got to watch him constantly and not let him out of my sight.
One of his tricks at the moment is he's worked out how to climb alllll the way up the stairs but he's too scared to come back down them... Haha!!