The reading is about how people use gestures around the world and how this could change the meaning in each part of the world.
1. in America we use all of our fingers to express numbers, but in China people use the thumb and pinkie raised to express number six.
2. In Japan people open and face up the palm to be more polite to indicate to someone.
3. We have to be carefull how we express in different cultures, to "come here" for example, is better tu palm down