Originally Posted by
exerda
For the OP: I'd simply ring or ask a passing FA for a refill.
As an aside, I find it easier on both me and the FA to get up (assuming the seat belt sign is off, of course) and go to the galley and ask for a refill...that way, the FA only has to make one trip to your seat, not two, and you get your refill quicker. Everybody wins!