“I’m not yawning. I’m doing face yoga” is a jocular saying that has been printed on a T-shirt. “I’m not yawning.  I’m doing face yoga” was posted on Twitter on October 3, 2011.
 
         
Wikipedia: Yoga
Yoga (/ˈjoʊɡə/; Sanskrit, योगः) is a group of physical, mental, and spiritual practices or disciplines which originated in ancient India. There is a broad variety of yoga schools, practices, and goals in Hinduism, Buddhism, and Jainism. Among the most well-known types of yoga are Hatha yoga and Rāja yoga.
 
Twitter
Ian Jasper‏
@iansjasper
I’m not yawning.  I’m doing face yoga.
11:46 PM - 3 Oct 2011
 
Twitter
SHRUTI SHETTY‏
@synapsewitshrut
*yawn* ... And some more *yawn*...a lil mre *yawn*... Facial yoga being practiced wit dedication.
6:51 AM - 20 Nov 2011
 
Twitter
Mark A Lopez‏
@UnEmployedUSMC
My coworker: why do u keep yawning? Me: bitch I’m doing face yoga!
6:09 AM - 9 Aug 2012
 
Twitter
Chante‏
@ChanteHayley1
Yawning is actually good for your face… It’s called face yoga… That’s a thing now/: haha cool, the things people figure out to pass time
4:00 PM - 15 Mar 2013
 
Twitter
Samantha’jo‏
@SamanthaJo_92
It’s not yawning, it’s face yoga
2:42 PM - 11 Oct 2013
   
Twitter
K Renee‏
@Kurifoz
I’m not yawning I’m doing face yoga
3:20 PM - 30 Oct 2014
 
Twitter
Missy Baker‏
@TheMissyBaker
I’m not yawning I’m doing face yoga.
3:29 PM - 3 Aug 2017