Suggestion.....

I know how thrilling it is to bump into fellow permolat members. Usually the tools we carry give it away.

I reckon @strider has got it. Our very own Morris dance! Then as we stride along the path and see another tramper approaching we can simply break into a few dance steps as they approach. They will immediately respond in kind thus engendering a conversation to take place, or dash of the side of the track in fear and hide until the suspected loony chainsaw gang disappear.

Yes, the US military are big on coins. And these aren't usually just 'coins'. They're more like elaborate medallions. Some of them are phenomenal!

we could get tattoos!

Right across our foreheads.

Now you've got it! Tramper NZ ta moko! :D