1. Get the mic as close as possible.
- A microphone should be as close as possible to the subject to get the best sound. That's why it's good to use a Shotgun mic or a mic with a grip. (The key is to get as close as you can without getting in the frame).
2. Always wear headphones.
-It's good to always wear headphones so you can determine the true quality of the sound you're recording. The little ipod headphones won't cut it either. We need those headphones that suction your ear from any outside sounds (professional headphones).
3. Monitor the Sound from your camera.
-Its always good to monitor you sound directly from your camera rather than through the mixer. The signal from your camera will be the signal you're actually editing. Always listen to the sound at its final recording destination.
4. Scout your location for sound issues
-This is very important because you should know what problems you're going to face before facing them.
5. Always record atmosphere or room tone.
- Always have shoot at least a minute of atmosphere sound to layover anything with inconsistencies. For example: if you have to re-record dialogue in studio but you want it to seem like you shot in on location the only thing that will make it sound realistic is that atmosphere sound laid on the track.
courtesy of Down and Dirty DV: Shut Up and Shoot