A Guide To Hmmms

Hm - An agreement. It is the equivalent of nodding your head to get the speaker to continue the story. Also, a misspelling of 'him'.

Hmm - "I'm not quite sure I agree with your last statement".

Hmmm - "I'm thinking of ideas"

Hmmmmmmmmmmmmmmmmmmmmmmmmmmmmm - "I've fallen asleep on the 'm' key"

:D

http://shinebubbles.deviantart.com/art/hmmm-61146470