Your uses of shape water are imaginative, though I imagine one does not roll dice or play cards with wet surfaces.
Consider that you shape water with that spell, not evaporated colors; are your play surfaces still damp?
Also, consider that spells are not necessarily subtle, unless you are using the sorcerer class ability. This would imply there is a good chance that someone will be on to you and your cheating.
Outside of those considerations, as long as you are operating within the limits of the spell, you can manipulate the water and its attributes accordingly.