Ice Teh O looks like Scotch/Whisky on rocks
Cranberry juice can look like bloodymary
Water looks like vodka - easy to refill in the toilet...
Orange juice looks like screw driver
Ju Hwa Cha + 7 up - might pass off as flat beer
Apple cider looks like champange
Just get the correct glass loh
Don't think you need to be rich ba
Or you can take a club and dance on the bar top for a free drink
but remember to shave your legs ...