How do I subscribe to a thread?

Been a long time away from India Mike, but back for a visit & have already seen a couple of great threads I'd like to get back to when I have more time. Have forgotten how to subscribe to a thread...do I have to have done a reply or can I just somehow book mark it to track it quickly next time I log in? My old favourite threads appear on the left of my screen when I log in, I just can't recall how I got them in the first place! Thanks for your help,
K.

No, you don't need to reply.

Go to the drop-down menu called "Thread Tools", situated just above your post, in red letters. There you will find "Subscribe to this thread". It's that easy.

Of course! Thanks for that theyyamdancer...simple. I was only getting "Unsubscribe to this thread" & no other option, but was obviously doing something wrong. Have now managed to do it: a happy camper.

If you get "unsubscribe" you must be subscribed already!

You can subscribe to a thread just by posting to it. Please see your user control panel for all options, which range from no subscription, to getting an email every time someone posts to that thread.