Cross your legs
They lay down on their backs and put their legs and arms toward the sky.
Hare in your milk!
He heard there was chicken on the other side!
He gets lost every time he checks the speedometer.
Rex (made this one up myself!)
Have you ever blown a Transformer?
Because eventually, its cover would be blown.
To run their hands through their hair
Because it has been very knotty. Apologies in advance
A convertible.