Shake social

Social shake: shake hands, or clutch your head

Here is how this social looks to you and to everyone around...

On yourself: You are shaking. Kadm shakes and quivers like a bowl full of jelly.

No argument: You clutch your head. Kadm clutches his head.

On someone: You shake Sein's hand. Kadm shakes your hand. Kadm shakes Sein's hand.