Boots is a two-part baby sign. You start by doing the sign for shoes, taking two closed fists and bumping them together. Then open your dominant hand and touch it to the inside of your non-dominant arm's elbow - as if to show that the boots come up high on your arm.
An alternative ASL sign for boots is to form flat 'B' hands, horizontally facing downward, and knocking them together.
Boots are a good extension sign once a child has learned shoes. You help your child stretch themselves by teaching secondary descriptions like boots, or asking them to name the color of the shoes, or count the shoes.
Expanding vocabulary related to dressing up happens once your toddler begins showing some self-sufficiency and interest in dressing. Teach boots during the winter or by pointing to Daddy’s work boots.