Resteembot's rules are described above, so I will not go over them.
Instead I will give a few advices:

• don't resteem too early. ReSteeming is a second chance to get noticed. It is a waste to use it while your post is still on the top.
• don't resteem too late. Resteemed posts don't appear in the order of resteeming, but in the order of creation. If you resteem a post that is a few days old, it will appear pretty low on resteembot's feed.
• clickbaits generate clicks. It is sad, but it is true. Using a clickbait title and first image will get you more attention.
• resteeming crap = flags. It doesn't matter how good your clickbait is, if the content is crap. The content you provide must be satisfactory to people. After all - you only receive their attention, not their approval.
• write regularly. Your aim is to make your name remembered, so that people would look for your posts, instead of finding them randomly. If you achieve that, you will no longer need resteembot.