Try texting and having good conversation that will draw people into you because of the good conversation! Tip: remember such things like personal events such as their birthday, special occasions to them, special dates, etc and bring it up the next time you guys talk.
Once you are registered as a member of pen pal, make sure to join the chat rooms. First, make your chats interesting in the public chat rooms someone is bound to follow you to a private chat. Once you get the friends, continue with communication and keep your chat awesome. All your friends will be chatting with you in no time.