Google co-founder Sergey Brin shows off Google Glass in February. Brin says the camera displays an external light when filming, making it difficult for a user to record surreptitiously. Jeff Chiu/AP hide caption

This view from Google Glass shows the wearable technology's perspective. Selected applicants will be chosen via social media and given the opportunity to try them. Google hide caption

The view will be more sophisticated than this, but you get the idea. Jeff J Mitchell/Getty Images hide caption