I’ve started saying please to my electronic devices. This is not because I’m super-polite (although I like to think I am). My reasoning is that if you put “please” on the end of a request the device can tell that you’ve finished your command, and that it needs to go off and work out what it means and then do it.
From my completely unscientific testing I’ve found that it does slightly improve accuracy and response. Which is nice. I might start saying thank-you next.