If you want to block someone on TikTok, you can follow these steps:

1. Open the TikTok app on your device and go to the user’s profile you want to block.
2. Tap the three-dot icon (…) located in the top right corner of the user’s profile.
3. Select “Block” from the options that appear.
4. Tap “Confirm” to block the user.

Once you block a user on TikTok, they will no longer be able to view your profile, interact with your videos, or send you messages. Additionally, you will not see their content or notifications from them on your TikTok feed.

You can also unblock someone by following these steps:

1. Go to your TikTok profile.
2. Tap the three-dot icon (…) located in the top right corner.
3. Select “Privacy and Settings.”
4. Tap “Privacy and Safety.”
5. Scroll down to the “Safety” section and select “Blocked Accounts.”
6. Find the user you want to unblock and tap “Unblock” next to their name.
7. Confirm that you want to unblock the user.