I run alone, outside, without music.
I'd hate running with a partner, and in the past have had friends asking if they can come with me, and although I said yes, I was never keen on the idea. When I suggested a particular route to one friend she told me that was way too much and suggested a route which was about a mile long. It just wouldn't have worked and she didn't bother in the end anyway.
I have a friend who keeps pestering me to go swimming with her but I just don't really like the idea of that either and prefer my workout time to be my time.
I'm borrowing an MP3 player so I can listen to the interviews I recorded for my dissertation while I'm out running, and that's all the company I want!
Although actually I wouldn't mind trying running with a club, but it's something I haven't got round to.