It's hard to have any kind of social life when you're on dialysis.
The treatment itself takes up a good amount of time, depending on when you do (either in-center, three times a week - 4-5 hour treatments, or at home 5-6 days a week 3-4 hour treatments) and then you're not always gauranteed to feel great after the treatment, so you may spend a lot of time just resting.
I've been lucky; I've tried to keep an active life. I'm not as active as some on dialysis - I've read about some crazy folks who still go globe trotting, climbing mountains and such. God Bless em, I don't know how they do it! But I'm still fairly active. I went to school for a while while I was on dialysis, and I worked part-time - mostly doing odd-jobs for people. I run a video game company, and we make adventure games in our spare time - it's a hobby site, but we put in a lot of work to our products, and the team is comprised of people from all over the Globe. I play guitar in a band, and I still manage to get out and play a gig or two. I even got my friends and family together this summer to shoot a little comedy movie - we had a crew, costumes, a script.... it was a lot of fun. Whenever we can, my wife and I go up to my family's camp in the Adirondack - it's nice to get away, if only for a day or two, and enjoy the woods. We even did dialysis up there once, which was a crazy experience. Doing dialysis in a cabin in the middle of the woods was a very zen-like experience.
I'd say that keeping busy keeps my mind focused and on the good things in my life - but it does, at times, make me realize how limited I am. You get a taste for being on the move and doing things, and you wish you could do more only to remember you're tied to a machine with a three foot freakin' tube.
I can't for the freedom that a transplant will someday provide me with - I don't think you'll be able to stop me from going and going!