One can call a group of people with similar interests 'friends.' One becomes friends with another because they share a similar interest. One can have many friends that share the same interests as each other.
family members
If you both get along and share relatively similar interests.
Travelling, photography, music both listening and playing), hiking.
Sometimes if you try too hard it can seem needy or overbearing to some. Take it easy, get involved in groups of interest to you and from there you may meet others that share similar interests.
My friends and I joined a gild composed of people who had similar interests as we.
The whole world is connected by the Internet, and you can use that to find single people in your area that share your interests. Social networking websites are a great way to find singles in your area with similar interests that you can strike up a conversation with and arrange to meet in person.
A selection effect
You can start saying hello and be nice and kind to them, invite them to join you in your group of friends. be yourself- share interests and hopefully they will be the same with you.
Find people who share similar interests with you, and befriend them, but be nice to everyone.
Peers or generations compatible
Peers are people of similar age who share similar interests. While a casual friendship is a relationship between peers who share something in common. :D