Hi, If you follow Someone you can se what they add to their lists and albums. You can see who they follow and see the comments they post. When you follow a list every update of that list will be shown to you..To see all this you have to click on your profile pic, under Homepage there is Timeline you have to click that and you'll see what the users you follow are doing.. :)
as explained ^
it's reflected on your timeline feed. you'll see when the person you watch adds a manga on his/her list, as well as the pics added in the album.
actually it depends on whatever the person you`re following has enabled/disabled in their activity setting...
so sometimes you can also see what this person likes, what topics they created and what they added to read, want to read and already read list...
what happens when you follow someone on this site? does it notify you of when they add to a list or something similar? or does it do nothing and it's just so you can keep all the users you wanna remember?