Exercises for orbicularis oris of the mouth?

[Sceriff06]

Hello, on YouTube I found very few exercises that treat this muscle, so I wonder if it is worth training, and how?
Can a little hard chewing be enough?

 

[HighIQ ubermensch]

Hello, on YouTube I found very few exercises that treat this muscle, so I wonder if it is worth training, and how?
Can a little hard chewing be enough?

you can't it's cope

If you have monkey mouth area, nothing will fix it

(mark solution)

 

[Sceriff06]

you can't it's cope

If you have monkey mouth area, nothing will fix it

(mark solution)

That is, I can't train those muscles?