@canineical some people love hashtags. But I think that it's following people that makes the difference.

When I see someone posting interesting stuff, I tap on their avatar/picture left of their address at the top of the post. This takes me to their profile/"home page", where I can read about them and see some of their posts. If they look interesting, I can follow them on that page. Following lots of people gets you a community. You can also unfollow them later.