1. First, you need to add the gift object as a friend. [Detailed Tutorial]
2. Then open the steam store, find the game you want to give away, and click to add it to the shopping cart.
3. Then go to the shopping cart, find the game you just added, and select “Buy as a gift”
4. Then you will enter the friend list and select the object you want to give away.
5. After choosing, you can also enter a message.
6. Finally, pay according to the game purchase process to give the game to your friends.