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miss_j/Getty ImagesI've actually heard of this little trick before. But now there's a TikTok from a flight attendant that's going viral. It's a way to check for two-way mirrors in hotels. The flight attendant uses her TikTok page to share travel hacks. This particular hack is a regular part of her hotel check-in routine.
Some of her other check-in tasks? Looking for unwanted guests, locking and deadbolting the door, and using sanitizer wipes on common areas. And then there's the mirror check. When you put your finger to the mirror, if there's a gap between your finger and the mirror, it should be okay. But if your finger appears to touch directly, there may be an issue.
But, it might not be 100 percent reliable. This site shares a few other ways to check.
