Is there a way to subscribe to the thread without posting?

I have no useful info to add to a thread but I want to stay updated on what the OP adds. I think there used to be a drop down at the top of the thread that said something like Thread Tools maybe and you could subscribe to that thread. Am I just retarded?

Right-hand side beneath the posts.  It says "Reply""Notify""Mark Unread""Send this Topic""Print"

Click notify, pop up box comes up, click ok.

Done.

oh ok. I thought that was to notify a mod of banned content. like report. Ok mystery solved. I'm retarded. Thanks