Signing: The Angry sign is made by making your strong hand into a claw and bringing it to your mouth. While making the hand motion make the facial expression for anger, squaring your jaw and tensing your facial muscles.
Usage: Teaching more complex emotions signs like angry is a for more advanced babies. It is a useful sign, because it helps you identify and acknowledge an emotion that a child is feeling. While this will not by itself defuse a tantrum, it can help reduce the frustration at not being understood that usual causes these tantrums in toddlers.
Angry can be taught using books, and also just by pantomiming the emotion when you are teaching the sign. Teaching an opposite emotion like happy as a contrast also helps some children can catch on to the meaning of the word.
Flash Card: Click the link to view the Angry Baby Sign Language Flash Card. The flash cards are printable and available in both U.S. Letter and A4 sizes.