Don’t just “talk to the mic.” The amount of presence and projection used should
never be only enough to reach from the mouth to the microphone. You should
speak as if you were addressing someone across the room in a typical living room;
that is, about 6 to 8 feet away.
Do not confuse loudness with projection; if you increase your volume, you must
move slightly back from the mic. By the same token, if you speak very softly, you
should move in a little closer and possibly turn up the Mic volume. But always
remember to maintain the proper relationship between your mouth and the
microphone.
Go by what your see on the VU meters, not by what you hear on the headphones.
Adjust the headphone levels to be sure that you are accurately monitoring
yourself.