.....this weekend and traveling to far off places.
Don't fraternize with the natives, remember not all cave-dwellers are Hobbits
Don't eat the lamb, you do know where it's been
Don't attend any religious ceremonies, you could end up being sacrificed
Always refer to your rifles as 'bang-sticks' then the locals will understand
Don't try and explain where you come from, they think of the M4 as 'the yellow-brick road'
Follow all of the above, have a good time, and don't bother coming back unless you win something.