I'd be chill with it. I'd be like yo you can smoke in the house and so can your friends. Don't bring shady people over. And you can smoke out of my bong just don't break it. Don't eat all the food and be respectfull. Don't drive with weed on you unless you are bringing it home. Everytime you get weed put it in your trunk. Never travel with paraphenalia (sp) basically I'd say don't be stupid but enjoy it.

Oh and always offer to smoke with me.