Soldato
Cats tail is up so it's going downstairs
its upstairs.
animals tend to drop their backs and thus tails for balance when walking downstairs in the same way that humans naturally lean back slightly its a subconscious action to prevent falling leaning against gravity, in reverse you naturally lean forwards when walking upstairs while animals lift their tails
Edit: opposite if slinxy
Downstairs unless they are really weird and have a lip designed to trip you.