ok, for starters, i guess we can start with basic rules on at least some grounds.
1) always have a minimum post limit. Unless it's a battle, you want posts to be 3 lines or longer. if posts keep getting shorter, and not pick up, the Rp will die.
2) Don't be stingy with description and type in third person when out of quotes, rather than 2nd that you're very used to doing. (i.e.: Instead of saying "Pokes your face" try using asteriks (*) and actually write it out like this *Shinzuu poked Myu's face*. Also instead of saying "I walked up" change to, instead *Shinzuu walked up*. Get the basic gist of it?)
That should be ok for a start. now, try initiating a greeting on the street. Say you're walking down the sidewalk and you see me standing there waiting to cross, and you haven't seen me in years. Type out what you would do and start a conversation.
(3 lines is just a general rule of thumb. Some put their limits as high as 5 or 8)