Being able to stand up for myself, and say what needs to be said. That doens't mean i'm blunt, rude or nasty, but I was so painfully shy as a kid, even through HS and college, and was picked on and teased, that I could never say cut that out, or stop it, that's mean. I also had issues even asking for help in a store, etc.. It was such an ordeal for me.
As I've gotten older, the pendulum has kind of swung the other way. I can't and won't be rude or mean, but I am very firm when it comes to many things. I've been accused of being direct, but not in a bad way. I have no problem simply saying no, I can't do that, no, that's not right, and politely telling people things they've said or done, whether to me or someone else, is not acceptable. One of my friends, who I've only known for about 10 years, as an adult, gave me what I thought was a great compliment, she told me she has never known me NOT to speak my mind. COnsidering how I used to be, I was flattered.
I also have no problem now asking for help in stores, etc.