You Just Need To Do Two Things...
- Go through the Member List and add some of the names to your friend list. Don't just add those you know or talk to on a messenger, but those you don't know as well. If you catch them online, send them a message and see if someone needs help, wants to go PKing, wants to have a spontaneous party, or whatever else works. That's what we used to call an "event" before some felt like getting organized.
- For the sake of all that is good south of the wild, use our Official Servers. In Runescape they are World 80 (free) and World 70 (subscription). The world isn't so big that you won't run into SeeDs. It takes maybe three seconds to find the numbers, why not use those servers if there isn't something specific drawing you to another?
Just suggestions...