Anything related to fitness, nutrition, diet, cooking etc is great for friendship/ community building. It's relevant to everyone. You can easily learn things di

Anything related to fitness, nutrition, diet, cooking etc is great for friendship/ community building. It's relevant to everyone. You can easily learn things directly relevant to your life from others and before long have useful tips to offer in return. You get comfortable having personal discussions about topics that you care about. Plus anyone who sustains such interests for extended time is not a total slob and makes an effort to take care of themselves and live a good life.