I do a lot of traveling for my job. On a recent outbound flight, the business cabin was left in a shambles.
Back in coach, the flight attendant was amazed that I spent a few moments on landing to find the napkins I dropped at some point during the flight.
I told her that I do not treat my friends homes like a trash dump, so I will not treat the airplane the same way.
On the return flight, there had been some trouble; several idiots had oversized bags and were having trouble securing them in the overhead bins. For whatever reason, the plane was preparing to depart (staying on schedule probably) with these bags unsecured. Since I was tall, I went up and down the plane, shoving the oversized bags into the overhead bins (this is while the plane is taxiing, mind you). Nobody gave me grief for standing.
At the first meal service (10 hour flights are tough), the flight attendant brought an 'extra' business class meal back for me. She said it was in my boarding instructions that I should get one. She said the crew from the first flight really appreciated my attitude, and the people on this flight appreciated my help in handling the bags.
So… be nice and you have no idea what good things can come from it... Like garlic roasted prawns! *drool*