Search for their username and see if their profile appears
Check whether their profile opens normally or shows no content
Look for missing videos, likes, or follower counts on their profile
Try viewing your past direct messages with them
See whether old messages still show their profile name or avatar
Check if you can still mention their username in comments or captions
Try following them again and see if the follow option is unavailable or fails
Look for their comments or likes on your content and see if they disappear
Search for their account from a different TikTok account
Check whether their profile says the account is unavailable or not found
Notice if you can no longer tag them in posts or comments
Compare results between the app and TikTok web version
Ask a mutual friend to search for the account
Check whether their videos no longer appear in your For You or Following feed
Look for signs that their account may have been deleted or deactivated instead of blocked