Why do I get jealous over a girl even though I don't want to be with her at all?

 The correct phrase is "waiting for my hand to be shaken."

Shook is the simple past tense of the verb shake.

Shaken is the past participle of the verb shake.

Past participles are used to form the perfect tenses and the passive voice. In this case, we are using the passive voice to show that the speaker's hand is being shaken by someone else.

Here are some more examples:

The ball was kicked by the player.

The door was opened by the waiter.

The letter was written by the secretary.

I hope this helps!