My top tips are as follows -Find your niche -Be polite, respectful and supportive to other -Support others, add maximum content and be active.

More context please? What did you try, what kind of a community it is? There are tons of articles to help you get started. If you have any specific questions, I am sure this community here can help.

I think just like any community you can build/create it and expect people to suddenly appear. You'll need good content and find ways to promote it and pull people in.

It'll be hard, but I'd say be honest and human. If you try to act corporate/fake at all they'll know and downvote you to oblivion.

You need to build trust and speak on topics related to your industry.