now, before i begin, let me just say that i am no particular expert, just in my time on ng, i've learned some useful stuff.
1. as for a title, make it a summary of the topic, dont go " i like to..." then have the rest on the page or something like that..
2. the body should be fairly long and have a pic. the pic is not required, but it helps.
3. appeal to all ngers! porn lovers, violence lovers, retards, kids, etc. try to add things that catch the interest of everyone, or some as the case may be.
4. talk to your fellow ngers! if you find a response funny or offensive, respond!
4.5. not only does this help, it keeps the topic out there for more people to see.
5. try to avoid spelling wrong, most of newgrounds cant think of a decent response so they look for errors. if posts are key, then spell like a retard on pcp. this will attract posts. most are flames, but whatever.
6. put it in your sig! why not? every time you post, there is a chance you will get more posts for that thread.
7. OH MY GOD DO NOT SAY "come check out my userpage" EVER. THIS CAN CAUSE INSTANT DEATH or unpopularity.
thats all the info i have to offer.