“I don’t advertise my lip reading business. It’s all word of mouth”

Some businesses don’t advertise, but succeed by word of mouth. A joke was posted on Reddit—Dad Jokes on October 26, 2018:
 
“I don’t advertise my lip reading business. It’s all word of mouth.”
   
     
Reddit—Dad Jokes
I don’t advertise my lip reading business. (self.dadjokes)
submitted October 26, 2018 by TommehBoi
It’s all word of mouth.
COMMENTS
stilsjx
My results speak for themselves.
   
Twitter
Dad Jokes
@Dadsaysjokes
I don’t advertise my lip reading business.
It’s all word of mouth.
10:07 AM - 26 Oct 2018
   
Twitter
Jokerswild
@JokersWildUK
I don’t advertise my lip reading business.
It’s all word of mouth.
4:33 AM - 27 Oct 2018
 
LaffGaff
By laffgaff October 27, 2018
Lip Reading Business Joke
I don’t advertise my lip reading business.
It’s all word of mouth.
 
Reddit—Cleanjokes
I don’t advertise my lip reading business… (self.cleanjokes)
submitted October 27, 2018 by madazzahatter
It’s all word of mouth…