You can see all members who visited your profile in the "Profile Visitors" list by clicking on "Profile Visits" in the left sidebar when you're logged onto the homepage.
- Basic members can see the last 6 profile visitors they had.
- PLUS members can see the last 100.
The list shows you other members' profile pics and some basic info. From here, you can visit their profiles, send them a smile, see how often they've visited your profile, or block them if needed.
On the top, next to "Profile visitors", there's another tab, "Profiles I visited" where you can see the profiles you've visited and interact with them from there.