how can i know that, my fellow lotters?

If you don't want to receive the notifications by email then the only other way is to use the tabs above the discussions, but it is very tedious to do it that way. Under 'started' you will see the topics that you have started and you can see who responded last. Under 'responded' you will see the topics where you left a response but unless you open the discussion you will not know whether your response has received a comment or not. You could make a seperate folder in you email for the mail from myLot. That would simplify things for you so that you would not have them appearing among your other mails.

Well you can look at your disucssions you wrote and look through them to see if the person responded to them. I know when I first was here years ago I had the same problem and it was trial and error. I hope this helps. Good Luck. !