Try lots of treats and praise when he goes on the pad right away. They catch on to this tidbit quick! If he doesn't just clean it up and ignore it if you didn't see it happen. If you see him doing it in the wrong place say no and move him to the pad... I know when Annie would "disapper" I would tip toe behind her. But her doggie ears would catch everything. so she would just follow me back. So the next time I would try to tip toe even more quietly