Google Plus + Google Glass = Google Puss

As in,  "Say, what's with the Google Puss?" if someone approaches me wearing them without asking whether I mind.

Another thought is to develop a GPS-based facial avatar app, possibly combined with wearable sensors to detect not only the orientation of the head but also the body ala Kinect. In this way, we could apply settings to our social networks that allow only those we know to "see" our faces when wearing Google Glasses, else they get only a view of whatever virtual mask or costume we adorn.