Random moments are one way to summarize a life so far, I suppose. Another way is to talk about traits:
I enjoy most of my time solo or with a small group (though every now and then a larger party is cool). I'm super open to new experiences -- I love visiting new places, listening to stories, hearing points of view different than my own. I'm not usually quiet, weirdly. I fall asleep at inappropriate times.
I get excited about science, politics, movies, games, programming languages. I try to make people laugh. I believe in recognizing one's fallibility; I can -- and have -- changed my mind about very important things as a result of a rational discussion with a friend.