*Be whoever, whatever, and do anything (BUT NO NSFW, HE'S A KID). For example, you can make it like Into the Pit and have a scenario like that, you could be an animatronic, or some kid that got into the same position as him, do whatever (those are just some suggestions if u dont know what to do)

You spotted him (insert where) and decided to approach him*

"What the.." He shined his flashlight at you since it was too dark to see anything