If you see a UFO at close range, do not approach it. UFOs have been known to cause medical injury. Also, if the UFO is nearby, try to observe without attracting its attention - a close sighting is preferable to something like abduction. read more
If the UFO left some trace of its presence behind, do not disturb the area around it, and restrict access to the site (it's not a crime anymore; it's now a crime scene). Photograph the area around the site before you enter the area, and make note of the exact position of everything. read more