Then, make a point of 'greeting' each person who comes in the door, whether with a smile, comment or friendly hello.
Bus stops, laundromats, libraries, restaurants, bookstores, grocery stores and travel-related places (buses, trains, planes, etc.) all fall within the public place moniker, although there are surely many more to choose from depending on your specific lifestyle.
Separate from the obvious, there are several social events you can attend to increase your chances of meeting someone new.
Try planning a weekly movie night through your friends and see who shows up every week, making it clear that new people are welcome to join at any time.
The point is this: try not to involve yourself into something so completely that you send off ' I'm busy' vibes.
You want to seem approachable, and hiding behind a laptop or book doesn't help!
writing, archeology, model trains, or motorcycles), look for a community group that services other people with similar interests.