Tips to make friends without spending money are welcome. I've spent years in a city without making friends.
Luckily even though I'm a minority in America, I'm not a minority in my city. :) It's filled with people of my ethnicity. So I have more opportunities to be closer with my people, and I want do the right things to get there.
Btw they don't have to be my ethnicity. Just wanna make friends to begin with. My dream is to meet cool communists around here. It's a minority city, and I figure I can't be the only one.
Amateur sports is always a fun way to make new friends. There's usually a weekly, anyone can join, soccer or ultimate game in most cities, just find yours. A lot of sports, like the aforementioned ultimate or soccer, have very little in the way of cost because you just need one object for the lot of you. At worst you'll need cleats.
For finding communists, it really depends on where you live. Find the largest communist group in your area, and get to know it. I'd also encourage you to join the IWW, lot's of branches and cool work being done. You might even be able to go to other cities, fully reimbursed (If you're a delegate to the annual conference, or for some reason need to go to HQ in Chicago)!
Also, just go places. I've met lots of communists unexpectedly. I met a punk anarchist through a friend who didn't even know my politics, a friend I've had for a while turned out to be doing indigenous rights activism, and people have put up stickers, posters, and graffiti for communist organizations just a few meters from my abode.