What is if you accidentally follow someone on instagram then unfollow?

If you accidentally follow someone on Instagram and then immediately unfollow them, the person may or may not notice that you followed them in the first place. If they do notice, they may wonder why you followed them and then quickly unfollowed. However, if it's someone you don't know or don't interact with on a regular basis, they may not even realize that you followed them in the first place. It's best not to worry too much about accidentally following someone on Instagram, as it's a common mistake and most users won't give it much thought.