Wardriving and warwalking have long been a favorite pastime of hackers. But the concerned stares and furrowed brows that follow you down the street when your laptop is in hand and your antennas are flying proudly can be disconcerting. To avoid this unwanted attention, I decided I needed a WiFi sniffer that could easily fit in my pocket. A tool that I could tuck away, but also had a display if I wanted to use it. Of course, it would also have to let me control the monitored channel, capture EAPOL packets, write pcaps, and log GPS locations. After looking around, I found no such device seemed to exist. So I made my own. In this talk, I'll share my Raspberry Pi Zero build out and show you how to cheaply make your own pocket sized WiFi sniffer.