So maybe technology isn't my strongest suit, but I'm having a hard time understanding the function of Neurowear. Or maybe it's Necomimi. I'm not even sure. Firstly, they are bunny ears for people. Not that weird in certain circles, but then they... have... brain sensors? They move around when you concentrate or see a cute guy? I'm not really sure, so here's the explanation from the source:

People think that our body has limitation, however just imagine if we have organs that doesn’t exist, moreover we can control that new body? We created new human’s organs that use brain wave sensor. necomimi is the new communication tool that augments human’s body and ability. This cat’s ear shaped machine utilizes brain waves and express your condition before you start talking. Just put on necomimi and if you are concentrated on, this cat’s ear shaped machine will rise. When you are relaxed, your new ears lie down. If concentration and relaxing time comes at the same time, your new ears rise and move actively. In general, professional sport players demonstrate their abilities most in this condition. If people show their feeling even they don’t express, what differences will be happened? Interesting? Ashamed? Scared? In the beginning, people may feel strange, however people are getting accustomed to control their new ears by brain waves if they keep using. At this moment, necomimi can be part of your body.

I still don't quite get it. Maybe the video will help:

Wait a minute, did she manually take down her ears and override the system? Does she know that guy? Was she just checking him out? Does his Bluetooth have to do with anything? Why would you want to give other people visual clues as to whether or not you were paying attention? I still don't get it, but I kind of want to try some.