It has been brought to my attention that my responces for,

"yes I agree." or "Mmmm."

and my

"Excuse me? can you repeat that?" or "Mmmm?"

sound exactly the same.

People will say something to me, i'll go "Mmmm." and they will repeat themselves, thinking i said "Mmmm" or I will say "Mmmm?" because I didnt hear, but they think i am agreeing with them.

How can "Mmmm." and "Mmmm?" sound the same, the latter one definatly goes up at the end.

:.