How To: Get free drinks with a glass and coin bar trick

You're sitting at a pub and are trying to impress a few ladies, but how? With a magic trick, that's how. Pose the question, "Can you pour the liquid into the other glass, but without touching either glass, and without dropping either of the two coins?" You may find that the answer to this is extremely easy, so impress the ladies, or bet your fellow drunkards into giving you free drinks... anytime. See how you can get free drinks with a glass and coin bar trick.