When I was working in full-time ministry, a friend pointed out to me that I tended to look angry. She and my boy friend (now my husband) tried to help me to notice when I was doing it - furrowed brow and all. Most of the time, it just means I am thinking about something, analyzing it, trying to work something out in my head. She was very nice and supportive, and put a fun drawing on the wall of my office next to the door so I would see it on the way out of my office and remember to check the position of my eyebrows. It really helped, as an angry-looking person in ministry isn't a good thing.
My husband also was my social mentor. He pointed out things that I did (at age 33+) that wasn't really socially acceptable. I was just being my naive, innocent self, and now, as I look at it, very childlike in social situations. He taught me to curb my emotional responses (these were "happy" responses, not bad, but not appropriate where and when I was doing them). He said that, although he knew I was truly feeling that way, that I looked "fake" to others.
So others helping me with the situation in a loving way actually helped.