American toilets use a different mechanism, a siphon sucks the water out while in Europe we just dump water into it and hope it flushes. Water usage is the same as far as I know.
Protip: when you're done, doesn't matter sitting or standing, push on your taint. It often helps clear the plumbing and prevents dripping. Was a life changer when I found that trick.
Men In The US Are Peeing Incorrectly According To Urologist ( www.iflscience.com )
Gentlemen, it is with great displeasure that I must inform you that we're doing it wrong.