Answer:

I saw her and waved her hand.

I showed a V sign to my favourite idol at the concert.

I playfully ran up and took off his hat.

We always shake hands while we met with friends.

I always cross fingers when I hope for a day without any homework.

She has shrugged her shoulders when I asked her opinion.

She has turned her eyes away from the guy she has crush on.

He looked at me questioningly and raised his eyebrows.