I think you are the one who rates the people on basis of their talent. So I'm not the right one to rate you because I can't judge people within a short period of time. Infact, this is a special ability of HR and I'm not HR.

If I'm ordered to rate you, I would give you 8/10 with +2 as complementary.

Sir, I won't be able to rate you as I feel I don't desrve to rate a person whose work position as an abbreviation i.e. HR already opens up to a phrase called 'Highly Rated'.

Well, I don't think anyone can be a good judge of anything in such a short time span. I believe it would be naive of me to think that I can rate you out of ten at your own job by only spending 30 minutes with you. However, I can rate this interview session a perfect 10 on 10 as it met all my expectations and I had a great experience interacting with you gentlemen/the panel.

Sorry sir, I haven't deserved to rate you. We are from different background. But you are an HR, you spent more years for studies to develop your skill and knowledge. At the same time, you may be experienced person, so we can't rate you.