Hello,
First you need to register as a member. You send 4 steem as registration fee and after positive review you become a member.
Please check this post for more details: https://steemit.com/qurator/@qurator/qurator-updates-1500-members-or-new-members-bonus-change-or-referral-bonus-still-active

After you are a member you can choose which way you would like to go. You can delegate, upvotes qurator's posts or subscribe with Steem to reach higher upvotes.
If you have an account on Discord feel free to contact one of our moderators there. They will explain and answer all the questions :)