Google has published a list of Dos and Don'ts for people using their smart glasses, and it's pretty much about what you expect. From the "Do" column:

Ask for permission. Standing alone in the corner of a room staring at people while recording them through Glass is not going to win you any friends (see Don’ts #4). The Glass camera function is no different from a cell phone so behave as you would with your phone and ask permission before taking photos or videos of others.

And from the "Don't" column:

Be creepy or rude (aka, a “Glasshole”). Respect others and if they have questions about Glass don’t get snappy. Be polite and explain what Glass does and remember, a quick demo can go a long way. In places where cell phone cameras aren’t allowed, the same rules will apply to Glass. If you’re asked to turn your phone off, turn Glass off as well. Breaking the rules or being rude will not get businesses excited about Glass and will ruin it for other Explorers.

Has someone already started a Glass advice column? Who will be the Dan Savage of the Google Glass world*? And in that hypothetical Google Glass advice column, how much of the advice could be boiled down to "don't be creepy," in the end? I'm betting most of it.

* Maybe Dan Savage should be the Dan Savage of the Google Glass world. "Savage Glass" has a nice ring to it.