I am usually inclined to give the 1st hit to someone else. It usually doesnt light great and I get a chance to watch how the bong fills before my turn. That way, when it does get to me (2nd-hehe), I can HOG the good hit and attempt to clear!

Rule#464.202 If visiting someone elses place, BEWARE: If they are male, they obviously MAY have "rested" THEIR nutsack on the bong! Especially if it was over $200.00!