Pat.

例句：

1. 1. When the band finished their performance, the audience gave a big pat on the shoulder.
   当乐队表演结束后，观众给了他们一个大大的拍肩。
2. 2.The teacher patted his students on the back as they left the classroom.
   老师在学生们离开教室时拍了拍他们的背。
3. 3.The dog wagged its tail in excitement and gave a little pat to the owner.
   狗兴奋地摇尾巴，并轻拍了主人一下。