Going to post this here because it's unconfirmed and very autistic, but previously Liam posted a photo from his POV at the Gifu Beer Fest.
(x) (Archive)
The organizers of the event also posted images of the event on an instagram account
Including the following two images
The first image was taken close to the time that Liam took his photo, as some of the more recognizable people in both are located in similar places, although the time is clearly different since the large sweaty guy, and the guy wearing a tie dye shirt are in different locations from Liam's photo.

However, if you look closely, you can see a relatively tall man in a yellow shirt and blue jeans with a slight frontal fade sitting down on the stairs roughly around the area where Liam must have taken the photo:
And in the second image, you can see a man who is relatively taller than the short Japanese people around him, wearing a yellow shirt and blue jeans with a slight frontal fade.
Could this be a sighting of Liam in the wild? The image is blurry, but the resemblance is uncanny. Also it would be incredibly funny, because that posture is fucking awful.