What is the correct position of the lips? Since I've had an open mouth posture most of my life, I have started to try to seal the lips but have noticed that when I do so I have a very large pouty lower lip and very small upper lip, aesthetically. Am I supposed to just walk around with this pouty lip posture all the time to seal my lips or is this wrong? Will this change over time? Thanks
I close the lips lightly. No sucking them back or closing them tight. They touch but don't apply much force.
Your resting closed lips shouldn't look proportionately different than your open lips. If they change size you are doing it wrong.
Sounds like you might be recruiting your mentalis muscle to help keep your lips sealed.