Hello jianlizhang! Welcome to Steemit! We'd like to share 5 of the most essential tips we believe will help facilitate your onboarding process here: (For a detailed writeup, check out our post Getting Started: 5 Essential Tips for New Users)

1. Keep your passwords safe: Unlike conventional sites, Steemit has 4 types of passwords (or private keys). Each offers varying degrees of access to your account so you'll need to secure all 4 keys. Know when to use each one here.
2. Get Steem rewards: Here in Steemit, you can earn 2 types of rewards: author rewards and curation rewards. In addition, you can choose how Steem pays your author reward: "Default 50% / 50%" or "Power Up 100%". Which option is preferred will change over time. To learn more, click here.
3. Upvote wisely You are free to upvote any post you find interesting, but wait at least 30 minutes after the post is published. Also make sure not to upvote too much too fast so as not to drain for voting power. To learn more, click here.
4. Know your Steem and Steem Dollars (and Steem Power too): Steem and Steem Dollars are the 2 main currencies here. In addition, you'll need to convert your Steem and power them up into Steem Power to have greater values on your upvotes. To learn more, click here.
5. Have Fun and Enjoy!

Good luck on your journey! We hope you'll like the great community here. Follow us if you like to receive more helpful tips and maximize your Steemit experience.