Make your forum appealing to your users, don't just chuck something up in 2 minutes and expect people to come posting! Also don't believe your forum will get active in a matter of days, it takes time. If you need help promoting your forum you should see the Promotion Tweaks section over at my forum, there's a bunch of useful guides Good luck.
yeh you are right but it will take a time to become active in starting you have to post by you n your friends after that you dont worry about that
First - you have to be your own first poster. Its up to you to post your first threads and topics Second - call your friends and family and ask them to join your forum. Third - figure out "who" your targeted audience is, where on the internet those people are at and "what" they are looking for. Is your targeted audience looking for images, videos, instructions on a certain topics, pod cast,,,,,,,. Then you need to start to provide unique content to target that group.
start a forum is must harder than a blog, you can first create unique and quality threads for your forum and let the search engines crawl and get your first stage visitors.
You have to post yourself as much as you can. Create some accounts yourself, and start talking to yourself.