How to Sign "Amount"
To sign 'amount', start with both hands in front of your body, palms facing up, with your fingers closed into 'O' or 'S' shapes. Move both hands slightly upward while simultaneously springing your fingers open to form '5' handshapes. The motion resembles lightly tossing a handful of something into the air. This is the same sign commonly used for 'how much' or 'how many'.