Say you're a standup comedian and you're speaking to a crowd. The only way to tell if your jokes were flat is by the crowd not reacting to it. But what if you went further than that. What if you made them angry but they're just not voicing it out? This Google Glass app will measure emotions. It is both creepy, and possibly useful in some situations.

Germany's Fraunhofer Institute created the app to track facial expressions.

It can measure human emotions in real time.

It gauges emotions such as anger, happiness, sadness and surprise.

All the stuff you need when you're pitching an idea, or arguing with your significant other? Called SHORE (Sophisticated High-Speed Object Recognition) it tracks facial expressions and projects information on the screen of your Glass.