In Japan they have the best vending machines. There are the regular ones that are just scattered around the streets, those have models of the drinks and you just press the button that is underneath the drink you would like. The buttons will light up once you have put in enough money for it. You can get a warm or cold drink, the warm ones have a red banner or button by or under it, the cold ones would have the same but the button/banner would be blue. But, my favorite vending machine, are the ones that are a screen that you put the money in the machine and then tap the one that you want. Then, the machine will either show the drink dropping off the screen and then one falls into the retrieving area where you can pick it up or the machine pops up a screen with a smiley face (happy vending machine) and then it will go to the retrieving area.