I've recently been asked to put together a "crash course" on etiquette specifically for teenage boys. Since members of the rabble tend, for the most part, to be polite and "cultured", I thought this would be as good a place as any to ask what you would include in such a course.

I was thinking things like writing an email, writing a thank-you note, tying a neck tie, table manners, appropriate use of mobile devices, etc.

So, what would you include? What do you see in today's "whipper-snappers'" behavior that could be improved?

Thank you, in advance, for your suggestions!