Answer:
What jumps when it walks, but sits when it stands?
kings and queens may cling to power and the jesters may have their call. I am the most common but I can rule them all.
I am a way to say goodbye to your sweetheart
I shift around though always slowly. I never move more than a few inches at a time. A large movement by me can kill many people. I am huge yet unseen by humans.
I have no head and a tail I lack but I do have arms and legs and back; I inhabit the palace the tavern the cot 'tis a beggarly residence where I am not. If a monarch were present (I tell you no fable) I still should be placed at the head of the table.
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?