For me, more fun communities and lots of comment engagements. I love to see people leave comments for me and not just upvote, i need to know my creativity resonates, not in a 'needing validation' way, but in a "quite relatable and here's what i think" way. I never fail to leave comments too when i see those posts, even when i don't get replies.
I think it becomes more of a community when we communicate in the comments. I made some friends doing that on steemit. Everyone seems invisible when Nobody is saying anything about other people's posts.