Friuli Venezia Giulia
1) in the setup where the players place the stepping tiles are these face up or face down when the players choose them?
2) as players move their playing counters around the board does it cost an action point to move through a stepping tile with a snake on it or only if the player would need to actually move over the snake (rather than alongside it)?
Only if you have to jump over it
3) players are only allowed 3 AP turn. Does the players turn end when they have used the 3 AP? Or can they continue moving if they don't use any more AP?
You may move your pawn after you've used all three AP if you do not have to spend any more. Just be careful that moving tiles and moving pawn are two distict phases during your turn, so once you start moving your pawn you may not spend action points to move tiles again.