Like a lot of communication, it's in the delivery. :-) But a lack of intonation or performance delivery (that head nod or shake) leads to a lot of confusion.

Like a lot of communication, it's in the delivery. :-) But a lack of intonation or performance delivery (that head nod or shake) leads to a lot of confusion. Furthermore, in text form it can be downright ambiguous. But I do smile when I hear:"Yeah nah, thanks tho' aay."