She's a quiet person. Before she met Usagi she was very alone, without any friends. Now she spends most of her time with the other senshi, though she has some other friends we've seen as well.
She also has some surprising talents. For instance, in one episode in SuperS it's revealed she's a very good mechanic, when she helps a friend fulfill one of her dreams, to fix up an old car her dead husband had bought to fix up. Another time she wrote lyrics for a song she liked, and at least according to the original creator of the song they were very good.
She's also a very good swimmer, good enough to keep up with Michiru at least. Unfortunatly she's very unselfconfident, and she doesn't press herself to her fullest potential while racing people. After her rematch with Michiru she seemed to be over this, but we don't know for sure whether that's true or not.
Your disterbing the lake's serenity, please go home. or pehaps to the corridor of characters.