[Meiko]

Take him to the movies. I'm sure there must be some movie he hasn't seen and would like to. If he likes sports, the swimming pool could be a good idea. You could take him to a local park, let him ride a bike there, or have some other activity in the open air. I don't know if where you live there is a zoo or like merylsilverburg suggested, some amusement park. Treat him some ice cream or milkshake or anything he likes. Kids love when you buy them stuff! I recommend you to take him outside the house for the longest time. This way he won't break anything or make a mess in your room or with your stuff, and he will be more tired when you come back, so you can have him spend the rest of the day in a quiet way.