What should be the second-hand posture when worshipping ancestors?

Different places have different customs, generally: put your hands and palms together, raise your eyebrows and kneel down; Open your hands, palms up, and then buckle your head. When you buckle your head, palm down and lie flat on both sides of your head. Then put your palms together, raise them to your eyebrows and get up. A place like ours is sometimes ignored. When you buckle your head directly, you can put your palms down on both sides of your head to support your body when you buckle your head. Just get up naturally when you get up, and your hands have no special posture. Hope to adopt