I don't care if it's your best option. Don't do it. It's basic etiquette. Don't know why this is so complicated. You look like a chief walking round in a blue shirt with a nalgene on top of your closed laptop asking if you can take this offline.
If you absolutely demand a water bottle on your desk you could consider a basic set up like mine:

But I know that 90% of people who insist on using water bottles in the office don't have the executive function to bring a decanter to work so I'm trying to start simple by getting them to use glasses.
But maybe I should go one step at a time, so to start with maybe try something like this:
then once you've got the hang of that try the open glass.