The sign for "popcorn" uses modified "X" hands. You put the thumbnail of the index finger on the pad of the thumb and then you move your hand upward and flick the index finger as if it were a kernel of corn "popping." First one hand and then the next.
POPCORN:
0:00 / 0:00
Sentence: "Do you like to eat popcorn at the movies?"
= SUPPOSE YOU GO MOVIE, YOU LIKE EAT POPCORN?
0:00 / 0:00
Notes: