But would you compliment a fat person on how slim they are? Or even bring up the topic of weight?
The thing that's proven to me that people don't know is how freely they discuss my hair - people who I KNOW would avoid any sort of awkwardness.
A friend of mine the other day, in the middle of a party, just said 'I think we all need to sit down and talk about Jim's hair! How do you get it to look so good!" I know that in your head, you're thinking of a dude who is just blatantly taking the piss, but trust me, this person would never do anything to make me feel uncomfortable.
That said, I have no doubt whatsoever that you, or anyone else who wears/is thinking of wearing would suspect!