The last rule for house guests is: Leave your host(s) alone. Go for a walk by yourself. Go visit the nearest large city without them. Run to the store solo and stock up on groceries for the household.
But do give your host a few minutes of peace.
Having someone else in your space for days is jarring to the soul and psyche. And with or without house guests, we all need a little decompression time.
So when someone's kind enough to put you up, leave them alone.