Play games
Choose the game that interests you and play itfor free.
Complete the quests
Every game has some quests for which you will receive Soul Gems.
Receive rewards
You can exchange your Soul Gems for Steam Wallet top-ups, game keys, CS:GO Skins and other rewards.
I buy an AUG Aristocrat skin (no stat trak) and I enter my steam trade url. after that it says i have to enter it but i have no idea where I re-enter it.