You could use the verb 'to pout'. "pucker"
perch your lips is another phrase for curl your lips.
Mouth, kissers, smackers.
To push.
Rejected
pout
supres or push
Another name for the lips is vestibule. or vestibule oris.
Exercise ,maintain ,wield
A press-up is another word for push-up.
just push your lips
Lips are 'les lèvres' (fem.) in French.
Rampage could be used as another word to describe forcefully pushing in or banging.