Keep your hands on the brakes
MUST
listen to music
MUSTN'T
take kids in a basket
MUSTN'T
wear a safety vest
MUST
use a light
MUST
use a lock to protect your bike
MUST
ride in a double lane
MUSTN'T
show drivers where you are going
MUST
Keep away from the gutter
MUST
wear a helmet
MUST
check your wheels
MUST
brake abruptly
MUSTN'T