Always a good idea to create a post to show your followers how you intend to behave, in terms of posting. It also helps to spread the word to new Steemians about what to do and what not to do. Like the cartoons. It's also nice to upvote good comments. I try to upvote comments to encourage repeat commenting. Its a nice little bonus. Each comment has a 7 day payout as well. You can also commments on older posts and upvote those commentsnif you happen to find something older that you like.