Browse 150+ muscle guy singlet smiling stock videos and clips available to use in your projects, or start a new search to explore more stock footage and b-roll video clips. A mature man is using ...

wp:paragraph --> Whether you’re talking, scowling or smiling, a groove forms on your skin the moment you move one of your facial muscles. That groove is perpendicular to the movement of the ...

All smiling involves contraction of the zygomatic major muscles, which lifts the corners of the mouth. But a Duchenne smile is characterised by the additional contraction of the orbicularis oculi ...