A few things you can try.


1.) Join an FC / LS AND be active in it. How to do that?
A.) Ask people to come with you when you do Roulettes. "Does anyone want to do a roulette with me?" / "Is there anyone who hasn't done today's roulettes?"
B.) If you are a crafter / desynthesizer, tell everyone in the FC / LS what you can do and tell them to ask you for help if they need it. "I am a Goldsmithing / Leatherworker / Weaver specialist, so if anyone needs something made, please don't hesitate to ask!"
C.) Ask FC members if anyone wants to join when you go do something. "I'm in a group about to queue for Weeping City. We have an opening for a healer and 2 DPS. Anyone want to join?"

2.) Join hunts. Many people gather for hunts and usually the same people. Become a regular in the hunting groups. Always be polite and thank people for finding the mob / spawning it with trigger.

3.) Use the Party Finder tool. There are always people looking for others to help them complete something / make something. Join their group and offer to help. Not only will they love you for helping, but they will surely remember you the next time they see you. Unlike Duty Finder, you can do an ID with just people in your server this way. Good way to make friends.

4.) Be polite in general. Thank you's go a long way. "Hope to see you again!". Always greet your FC and LS members when you log in and log out. Watch the FC / LS chat and say "good night" and "good morning" to people when they come in.

5.) Don't wait for people to talk to you. Okay it's not easy, if the other person is ALSO waiting for you to talk to them, then no one is going to talk. You have to make the first move and begin the conversation sometimes.