The steps are as follows:

1. Open the game client and log in to the account, enter the main game interface, click the backpack button in the left menu bar, and find the Golden Star sticker in the backpack. And drag it to the shortcut bar above the game interface.

2. Find the scrape button in the shortcut bar and click to open the scraping tool. Aim the scraping tool at the Golden Nova sticker and press the left button of the mouse to start scraping the sticker. After scraping, you can Use Gold Nova stickers to decorate weapons in the game.