I manage a technical group and I was having a discussion with one of the lead guys who is learning a new technology and when I was explaining a few things, he kept using the word "Right" to confirm his understanding.
At the time I could not tell if he was confirming the correctness of what I was saying or simply his understanding of it. When I asked him if he already knew what I was talking about. He said "no" and then we got into a discussion about what the correct word should be to confirm understanding.
I suggested that using the word "Right" was misleading and depending on inflection could be considered egotistical and/or give of the wrong message (as it did for me in this case). He of course disagreed.
Then again he could have just wanted me to shut up :)