The specific steps are as follows:
1, choose the shopping mall in Tu Tu;
2. After entering, select Clothing-Badge-Business Card Decoration, and select a business card decoration (such as Bing Xin Phantom);
3. Click Buy and a dialog box will appear. You can select the purchase period (divided into 7 days, 15 days, 30 days and permanent), and then click the settlement below;
4. Go back to the game hall. In my backpack, select Badge-Function, find the business card decoration I just bought, and click OK.
5. Open your personal information and look at the business card decoration just now.