Knowing what suits you, being well groomed, being well put together, having control of your life. Managing with what you're doing.
My daughter comes across as quite "classy" but she's gifted with height that I don't have, and she is lucky enough that whatever she throws on looks like she's made an intention to put an outfit together that looks put together. She has her own style which really works for her. She isn't massive on following trends, just what she likes. Her haircut is stunning on her and frames her face well.
She's quite reserved, comes across as articulate when she speaks, doesn't really speak for the point of speaking! Doesn't overshare, doesn't do the annoying self depreciation thing that I do.
It's easier for her as a teenager, but she makes plans, and doesn't spread herself too thinly so time isn't always running out too fast. She knows what needs doing when, which gives her an air of calmness.
She is also very polite and kind, which is all she offers up to people until they're "friends" of hers, so that politeness and kindness tends to be something that people remember her for.
It's quite funny because she makes quite an impression on people; her teachers hold her in quite high esteem, lots of people do. It becomes patently obvious that I am not who they expect to be her mum when they meet me.