The uv light check needs to be quick and precise after ghost activity. Direct physical contact leaves prints on doors, switches, and windows but ghost abilities won't trigger them. Keep in mind prints only last 1-2 minutes, and checking fast is crucial since obake ghosts have prints fade even quicker.

For best results scan new interaction spots like coolers, tent flaps, and keyboards immediately after activity. If dealing with an obake, watch for their signature six-finger prints or complete absence of evidence since they have a 25% chance to leave nothing behind. Remember that remote interactions, like a yurei's door slam or mare's light tricks won't create prints, so focus on spots where the ghost physically touched things.

Remember to sweep the uv across less obvious surfaces too - prison doors, campsite poles, and other map-specific spots that often get missed when hunting for evidence.