I agree that most will play the game just to level to start with, just to see how the game works.. some actually like that sort of thing and will continue to do so... they generally don't bother the RP'ers [least I find they don't]. Some, however, and I hope more than less of them, see others playing characters... and like what they see and want to be part of it...
Here comes the crunch....
I feel that new players often don't know how to differenciate between In Character (IC) and Out Of Character (OOC) to start with. They often speak about things as a player or about Real Life (RL) things without real consideration about what their character would actually be doing or saying.
They need to understand that to Role Play (RP) they have to seperate RL or OOC from IC and act the character they are playing, by taking on its persona.
Some of the pitfalls of failing to seperate this become apparent when playing a character with evil traits. The player on the receiving end needs to know it is only an IC thing not a RL thing, also the same is to be said when playing romances, it must be made clear from the start that it is IC not RL. This can be done with simple use of the /tell command and also the use of parenthesis [] around the OOC explanations
For example:
/tell Homix [my character is not a nice character, it is not personal to you as a player, please enjoy the game and allow your character to react as they would, but let us as players enjoy the game]
or
[I personally am happily in a real life relationship, so this incharacter one is only a game and not to be taken to heart, let us just enjoy the game]
I would also recommend that you do not go too far with expicit explanations where in character relashionships are concerned, there are two reasons for this, 1) you could be mistakedly marked as someone grooming a minor if the person you do it with is under 16. and 2) other users are likely to be as young as 10... as there is no way of knowing this you should alway err on restraint.
Oh and 3) not letting the other know what is OOC and what is IC can lead to misunderstandings and real issues to real people, not just the character... which are best avoided.
If you stick to these simple rules, one can start then to find your feet with actual RP.
With RP, you character needs to have some form of history, that should fit with the settings in which you play, in this instance it is PlaneShift [PS]. The best way to find out about the history and setting is to read about it here on the PS forum, or on the main PS site... there are books in the libraries In Game [IG] to help you on your way there.
Once you are happy about the history of your character, you then need to build your characters traits, mannerisms... looks... and reactions to situations, these will develope - well they should anyway, as your character interacts with other characters and copes with different situations (or doesn't cope, which ever you chose in your RP).
Then, as you play, you will meet others... see how they play, learn to develop you semantics around your speach which in turn will enhance your RP.
Semantics or Emoticons are done by using the /me or /my command... for instance here is a simple greeting between Joxit and Homix [made up people sorry if it is a real nickname]
Joxit says: hello, who are you [using normal speach]
Homix says: Ur what did you say?
Homix scratches his neck and looks round, his eyes are red and water-laden, looks slightly drunk and his breath could strip the skin off a Tefsung. [using /me command]
Joxit's nose wrinkles up at the smell of alcohol off of Homix's breath [using the /my command]
so on and so forth.
Also a good thing to take into mind is when you write actions with your /me or /my commands - don't say what actually happens to the other, that could be mistaken as GODMODDING which everyone hates. better to suggest what might happen to the other and let that player decide if they will go along with it, that way you will have great fun.. oh and remember - sometimes it is good to be a loser once in a while. Failing to win is the beginning of winning the others hearts in RP.
Have a great time playing
There, there was my tuppence of input for you... I hope it was useful.