Well, I've been here for 2 years already. This is my 3rd account, and I have many friends here. But some of them are not active anymore...
Anyway, back to the topic.
Tip #1: Be friendly and be extrovert
This is the first step before someone could wish to have a friend. It's not like you could quickly leave your shyness. No, but slowly. I know it's hard, but this is the first step.
Tip #2: Keep posting in forums
One way to have a friend is to keep posting! In that way, people can know you better. Especially if you have a fun with them on KW.
Tip #3: Go in chat
Well, many people go there! But I rarely chat there because the messages are flooded and it's hard to look for the message from a person you're talking to. But it depends on you, if you're comfortable.
Tip #4: Go read the bio of others
If the user has a medium or low privacy, then go and read the bio. In that way, you will know if that user prefers comment first before adding people and his/her likes, dislikes, interests, hobbies, talents so that you have an idea if that user is the right person to be your friend.
Tip #5: Comment
Well, comment others before you add, because some people prefer to have a talk first before they add a user. (You know, I add random people before I comment but of course I look for their profile too if they prefer comment first) After introducing yourself, share your interests, hobbies, likes, dislikes, etc! And find each other commons or similarities!
Tip #6: Respect opinions
We all have opinions. And we deserve respect, right? So if someone does not like something that you really love, it's okay! Imagine that someone does not agree or like in your opinion, so how would you feel?
Tip #7: Don't be so aggressive or in a hurry
Don't be like, "let's be best friends please" or the like, because people sometimes find it annoying, except for the fact that you know each other already and you like each other. So calm down, be patient, and chat and chat!
Well that's all I can give. Questions? Suggestions?