You can look at anyone’s profile without them knowing (provided their profile is public or you are friends).
The inability to see profile visitors cuts both ways. While you may be frustrated that you can't see who is looking at your photos, you should take comfort in the fact that can someone see who viewed their facebook
Detailed Academic Paper Intended Audience: General users, students of digital media, privacy researchers You can look at anyone’s profile without them
Some users believe these actions reveal profile viewers: students of digital media
You can always see who likes, comments on, or shares your posts .