Rule #1: Static shots. Zooming, panning, craning, trucking, are what ruin most amateur filming.
Rule #2: Make sure you dont' have the subject backlit. Film with the sun at your back.
Rule #3: Microphones on cameras usually suck, and they are prone to picking up the cameraman's breathing more than anything. Invest in a pocket digital recorder and put it outside the blind to record the ambient sound.