Good topic - I agree volunteering is a good way to meet like-minded friends. I think another place would be community events, but they might be hard to initially attend by yourself. Near us, we have weekly music in the park and events held my our county art council working on adults learning new art skills.
Like some others in this thread, I'm also an introvert, so I'm mostly content doing things myself or just myself and my family. As I get older though, I do want to work on cultivating my friendships. As DH and I get closer to retirement, I know there will be many more hours to fill during the day. I'm hoping to have more time to do things to meet more people as well as occupy my time.
My mom is a much more social person than I am and is my role model as far as friendships go. My dad passed away 19 years ago, so she was a young-ish widow at 60. She still misses him terribly to this day, but she has such strong friendships because she takes the time to cultivate them. She is very generous with her time and just a very caring person. Many of her friendships have started and developed from church relationships, but not all of them.
Some of the things she has done / does to cultivate her friendships:
- She helps plan her class reunions each year (at some point they decided to start having one each summer) which had rekindled relationships she had with classmates from years ago. She's then very good at calling those ladies to get together after the planning is over for the year.
- She takes food to families at church who have had surgeries / babies, etc. This keep her involved with people - they often go out of their way to do nice things for her / include her with group activities they may know about.
- She volunteers at our local hospital re-sale shop. Most of the volunteers are retired ladies like her and she has developed many friendships with them.
- She has always liked hosting things and always invites small groups of people to her home for various occasions. She was the church organist for years and always had a choir party at Christmas, etc. This is turn gets her invited to other occasions with those people.
- She invites people out for a birthday lunch even if they are not super close friendship wise. That may sound a little weird to those of us who aren't very social, but it gets her a lot a meals out with different people and she has developed many relationships from that.
I really don't think she does any of that specifically to get friends, it's just a by-product of the way she lives her life.