I am writing to inform you of the truth behind the s0-called 'resting bitch face' syndrome.
I can categorically inform you that you do not have 'resting bitch face'. Yes you. You also. And you.
What you have is a face. It changes expression on a regular basis, but it also has a repose mode. Whether or not your mouth turns down at the corners or up during repose mode, whether bits sag or not (gravity works! That Newton was onto something!), your face is simply your face.
If someone else is not content with your face, and suggests that you plaster a vacuous smile onto it for absolutely no reason whatsoever other than to appease their own exacting sense of aesthetics, then that is not your problem.
Thank you for your attention. Feel free to not smile.
/This mini-rant has been brought to you by the Ministry for Don't Tell Me To Cheer Up.