How does Tik Tok give his friend an injection?

1. Open the Tik Tok application and log in to your account.

2. Select the "Message" icon in the bottom navigation bar to enter the message page.

3. On the message page, click the "+"button in the upper right corner and select "Send Message".

4. Enter a friend's nickname or account number in the search box, and then select the corresponding friend.

5. Enter the chat interface with friends, and you can enter text information in the text input box.

6. If you want to send comments on a specific video to your friends, you can click the "+"button below and select "Comments".

7. In the comment box that pops up, enter your comments.

8. Click the Send button to send the comments to your friends.