Facebook has an activity log feature that allows you to view everything you've commented on, liked, uploaded, posted, and so on. It's a feature that only you can see but it's a handy one. You can access your activity log from the Facebook for iPhone and iPad app in just a few taps. Here's how:
That's all there is to it. You can now view your activity log which includes all your activity on Facebook. You can even filter it to only show certain types of posts or events if you'd like.