Know that balloons have the right of way above, when they can't see you.
If you want to fly with balloons during the Fiesta, it's a no go. Fiesta gets an FAA waiver, that means they "own" the airspace for a 5 mile circle around the field. But any fall weekend, balloons fly from other places, and on those days it's regular airspace. Maintain a safe distance, and most pilots I know would think you were cool. Know that balloons have the right of way above, when they can't see you. So don't fly close over the top and have one suddenly climb into you.