How to kneel at the feet of Linyi's late son-in-law

The steps are: cry, dad. . . . Present a gift (the body is upright, the hands are drooping, the upper body is bent about 100 degrees, the arms are crossed at the same time, the arms are raised at the same time, and the hands are folded), and kneel down. The host will give you incense and wine (to be sprinkled in front of the altar), and you will pass it on to the person on the left. Knock on one head, stand up, make two salutes, then kneel down and knock on four heads (note that you have to knock on your head continuously and straighten up one by one. At this time, the piper will remind you that the ceremony is over with a long sound. Stand up, walk backwards and show two gifts. You can turn around and walk out.