The way you stand and where you look affects the read.
1. Keep your eyes on the script. Only a few seasoned actors are
able to look away from the script, keep their mouths consistently placed on the microphone, and remain in character. For most, looking up at the microphone becomes the equivalent of avoiding eye contact with the listener. It results in a disconnection from the listener as the "need" is changed from the client to yourself. Public speakers look up to make sure people are listening, are engaged, and understand what you're saying. In the recording world, assume that the audience is the paper. It will also minimize timing issues while you find your place on the script again and microphone proximity issues from looking up and down.
2. Avoid crossed or limp arms. When they are crossed tightly
in front of the body, you will sound guarded, defensive, and
unapproachable. Limp arms result in a lazy and lifeless sound.
Putting hands in pockets is also a form of protection. Unless
that is the desired end result, relax the arms and allow them to
gesture and move freely.
3. Ground yourself. If you don't believe what you're saying,
unnecessary movements and tics often develop that detract
from the message. You will sound uncomfortable, nervous, and
unfocused if you fidget, tap your feet, or step back and forth
from the microphone. To sound confident and authoritative,
plant both feet firmly on the ground, bend your knees slightly,
connect emotionally with the listener, and breathe. This posture
will help you sound trustworthy.
4. Don't be afraid to show your teeth. A smiling face with an
open grin creates a confident, eager, and pleasant sound. When
talking about serious topics, the competition, and logical information, you may drop the smile. This positive and neutral attitude requires flexible facial muscles. So, don't be afraid to have a rubber face.
5.Know the size of your character. The more open your stance - legs open and arms outstretched - the bigger, more powerful
and more confident you'll sound. Standing with feet close
together and keeping arm movements small create a smaller,
more behind-the-scenes type character. Turning the body at an
angle to the microphone results in a mid-size character that has
a cocky, confident attitude.