Hi All,
First post and all that…
Anyway, I bought my first unicycle about a week ago, and have been grinning ear-to-ear since then. As a result my cheek muscles are starting to hurt, has anyone else had this problem and if so what should I do about it?
Many thanks in advance.
Matt
Sleep for a few hours, then start again.
I had that same feeling at age 11, when I learned to ride, and then again at 52 after I decided to start riding again after 40 years!.. but now my other kind of cheeks are hurting me! lol anyways, take it all in, and enjoy it… 
play the trumpet while riding this will strengthen your cheek muscles!
:)))))))))))))))))))
The usual advice, keep practicing and you’ll get used to it. :D)))))
I was wondering about that as a party trick - can’t juggle, but can play the trumpet 
(many years ago I actually earned decent money busking).
it’s difficult (I’ve tried many times), better have a mini-trumpet and a very large mouthpiece (Denis Wick 4W for cornet )