I'd say you should just play how you normally do, but you dont have to play as tight as you normally would. Whenever i play house i games i still play my usually tight ways, but i loosen it up just for a bit because im amongst friends. True, we're trying to take each others money, but at the same time we're having fun. And having fun with friends in poker doesnt mean you have stray from your style of play. What i mean by loosening up is calling with hands your normally wouldnt call. im not saying call with every hand or very weak hands, but marginal hands that you wouldnt normally call. Ex: ill fold K/10 at casinos
for a small raise, but i might call it at house games.