"I can!" shouted Eric, wildly waving his arm in the air.
“我能！”埃里克喊道，他激动地挥舞着手臂。
2
Think that using a finger to call people to express an insult, while the right palm of the hand gestures should be down, waving all the fingers or arm.
认为用一个手指去召唤人是表示对人的侮辱，而正确的手势应该是手心向下，挥动所有的手指或手臂。
3
Suddenly, you are overcome by the feeling that you have been here before-in this same park, with the same dog and birds, while the same owner is waving his arm in exactly the same way.