By looking over your shoulder.
It gets jalapeno face.
Raisin' Bran.
Don't look! I'm changing!
They are looking at your shoes, rather than their own.
Two. One to post the joke and one to post a better punchline in the comments.
ME-OW! I am very sorry. Just thought of it and felt like everyone should hear it. Maybe some jokes are better left untold...
At las!
He forgot his head and shoulders.
Nuked
Crimea river