[quote=@Surtr Inc]
By being interesting.
[/quote]

Laughed at this, but honestly [@Surtr Inc] hit it right on the mark. :lol

To start, you need a title that will catch people's attention. This can be done with a name, brief description or even throw in a pseudo title. The tag system will help as well seeing as you can categorise the roleplay to a specific genre. From there it's everything inside your thread, and this is where you have to show your best.

Clarity, presentation, colours, images — the who, what, where, and when of the roleplay must be the centerpiece of your OOC. [@Dervish] touched on this but you have a total of about 15 seconds to grab the user's attention. They need to know everything about your RP before they even read through the page, and they need to see that this information is presented as best as possible. When does this roleplay take place, where is it located, what will be the objective, and more importantly, [i]who[/i] will they be able to play. In any roleplay you can create an amazing world but if you don't give a detailed section on who the players will create, you will either get nothing or any kind of character that you never could have thought of.

On top of this, I'd be patient. you've only been in the site for a couple of days and it may take some time for people to either see or enter into your roleplay. there's a careful meta-game of playing the bumps where you can be over eager to the point of driving people away, or slow and lax thus leaving people to think you've ghosted.