The rules are simple: post a link to your demo, and a link to the Project Discussion topic where people can give you feedback. NOTHING ELSE! Don't post screenshots here, don't post feedback to peoples' demos here (that's what the link to your project topic is for). Any off-topic posts will be deleted immediately and without warning/notification. Also, refrain from using massive colourful letters to draw attention to your post and away from others.
It's up to you but you'd be well advised to mention the title of your game as well. These posts that just say "topic/demo" aren't particularly eyecatching.
One or two lines of text are permissable if they are related to the demo (i.e. installation quirks, et cetera). Posts about plot et cetera are NOT appropriate. That's what the forum topic is for. keep it concise!
Be sure to read the FAQ if you have problems.
