In The Studio: Singer/Mic Positioning & Monitor Mixing

Pro Sound Web: With mic choice and signal chain dialed in, listen to your singer over the monitor speakers to determine the correct distance from the microphone.
You should have a fixed the initial distance back when you set the microphone height for the singer out in the studio. Some engineers will open a hand and use the distance from the end of the thumb to the end of the baby finger as the starting distance.