You could also play tabletop or card games, like Dungeons and Dragons and Magic: The Gathering.
Don’t be afraid to carry a book with you everywhere you go.
Learn website and mobile development. You could learn to make your own websites and mobile apps. Research and learn how to build robots. Look for a robotics club in your area. It’s okay if you weren’t that great in science at school. Invest in your interest, and you will learn a lot over time.
Consider your budget before choosing an item to collect.
Invite other people. If you have friends that share your interests, ask if they’d like to form a club with you.
You can also stay up-to-date on your passion by attending conventions and conferences related to it.
Make sure you balance time spent on your passion with time spent with your family and on your job.
Search eBay or thrift shops if your interest isn’t very popular anymore.
If you like Steve Jobs, wear a black turtleneck. If Mark Zuckerberg is your favorite geek, dress in a casual style. Wear a hoodie, shorts, and flip flops.
For example, find a pin or button displaying your favorite superhero.