This is awesome. I wonder why this is not the default (inbuilt) way of taking pictures. Before they made it more obvious, I was actually thinking this would be the way to click pictures in a glass.
Because randomly winking at people might give them the wrong idea.
That would still be creepy without the gGlasses though.
It's also going to be creepy if someone who you currently are comfortable sociably with approaches you wearing gGlasses. "Mate... take them off please"
All roads lead to creepsville in normal social situations, unless the person is using them to augment something like adventure sports, visiting an exhibition or the like (which is why Google chose to lead with those marketing videos and demos obviously)
I wear different shit when I go hiking or skiing. I don't do my daily commute wearing ski goggles. The barrier to surmount for this to become acceptable rather than creepy-couture or ubiquitous in normal daily activities is possibly insurmountable for the foreseeable future (admittedly that's my wishful thinking, and I say this as someone who doesn't live in the Silicon Valley area).