My girlfriend told me I had thick hair. I was curious as to why she would said that, so of course I asked, "how do you know?" She sorta gave me this glazed look, like "wow, wasn't expecting you to quiz me on THAT comment", but then just said, "because I see it all the time, and I run my hands through it. It's thick. You have lots of hair."
And with that comment, I proceeded to love her.