Seasick

Seasick, or seasickness, is an oldschool trick that, like the Boeings, is technically very simple, but terribly difficult to learn. In this case, we move our hands up and down and always against each other. Vashek also does Seasick correctly in front of the head, sometimes even above it. It's better that way, the trick is easier to do, but be careful not to break something, for example yourself.