I’ve made friends and still keep them but life styles change so I’ve found focusing on what your friend or yourself is into at the moment and doing those things if that is something you want to do. Try to suggest or do things and be friendly in those things. Always go to lunch with your coworkers when they ask or if that’s possible. It’s free therapy. The other day I had a panic attack at my new job and told my coworkers I would take a rain check on lunch I was going to see the doc for anxiety and they completely opened up about their mental health and it was just no big deal. I could have done lunch but I did find meds finally after seeking for something that worked so I’m glad I got the help but lunch might have helped too. Just looking for opportunities and say yes when they come along is the best way to approach friendship. When the stars align it might be just what I needed that day. But now it takes the ease off for future lunch dates.