The ETs instructed us to "look up" and begin capturing photos and videos to document these events. Be mindful to retain "hard copies" offline, as cloud data can be manipulated.
I'm now actively photographing the area where I live, and I encourage you to do the same if you can—share your findings here. There were no specifics given about "where" or "when," but I take it as an invitation to act now.
They also mentioned there's no need for special equipment—no video processing or infrared lenses. Simply look up and take the shots.