Of course, if you look above the very first post on any thread you will see the word watch underlined. If you dont want to post on a thread but want to see how it developed click on watch.
Then right at the top of the page in bold print is my talk, along from my talk is, threads I'm watching. If you click on that it will show you any threads you are watching.
If you do decide to post on a thread, that thread will appear in the threads I'm on list but if you dont post for a certain amount of time it drops of off the bottom of the list.
Are you be-fuddled yet ?
One more way, for example if you wanted to find me (oooooo the thoughtof a stalker.....)
At the top of the page is find discussions and right next to it is search for messages. Click on that.
ou go to another screen where you can enter a particular word or a posters name.
Enter my name and then the dates to and from you wish to search and it will bring all the threads up that I have been on.
There, crash course over !!!
It does sound to me more like its a phase he is going through. If he does not go out much then maybe you could do something together one evening when the others are in bed (if its not too un-cool that is !)
You are off on holiday soon too I see, are you looking forwards to it ?