Universal Hand Signal
Yah, high tech toilet huh? They don't even know when to give me water to wash my hands. Why can't they just stick to traditional taps?
Something must be wrong with these hand-free-sensor tap. Perhaps we are using it the wrong way. Perhaps there is a secret password or something. Maybe you need to say "Open Sesame" or insert a token or something. Anyone got the instruction manual?
Or perhap you need to use the universal hand signal to get water.
Ah.... finally there is water. Another example of how useful the universal hand signal is.