How do you see two peoples interactions on Facebook? So, how to see someone's Facebook activity? To know how to check activity log on Facebook, all you have to do is first to your Facebook account and go to the friend's profile. If the person whose Facebook activity you want to check is in your friend list, then this method can be useful to you. What you can check: All likes: photos, music, videos, books, sprots teams, etc. Upon pressing the Enter button, you can see the person who viewed your Facebook profile often. Copy that number and paste the same next to When you copy the number, do not consider -2, which follows each profile ID. These are profile IDs of your Facebook friends who have visited and viewed your click page frequently. Type Facebook in the address bar and go to the website. Similar to the instructions above, if you click on the three-dot icon you can access a feature to favorite that particular friend as well as unfriend them. The instructions vary slightly depending on which OS your phone has.