How do I use Activity?
Activity displays likes and comments on your own posts.
On an iPhone or Android device
If you're viewing Activity on an iPhone or Android device, Activity can also help you stay up-to-date on recent activity from people you're following (example: letting you see the photos and videos that your friends are liking and commenting on).
To see activity from people you follow, tap at the bottom of the screen, then tap Following at the top. To see your recent activity, like people who've followed you or liked your posts recently, tap You. Keep in mind that the Following tab won't work for accounts that follow more than 1000 people.
On the web
To view your Activity notifications on Instagram on the web, tap or click at the top of the screen.
Your activity on Instagram will be displayed in Following for anyone who follows you. If your account is set to private, only the people you've approved to follow you will see your activity.