To sign 'know', start by forming a flat handshape with your dominant hand, keeping your fingers together and slightly bent. Bring your hand up to the side of your forehead. Tap your fingertips gently against your forehead, with your palm facing inward.
Point to yourself, sign 'know' by tapping your forehead, and then point to the person you are referring to.
Point to the person you are asking, sign 'know', then sign 'ASL' while raising your eyebrows to indicate a yes/no question.
Sign 'I', 'know', and then use the sign for 'finish' to show that you already possess that knowledge.
Point to yourself, sign 'know' by tapping your forehead, and then point to the person you are referring to.
Point to the person you are asking, sign 'know', then sign 'ASL' while raising your eyebrows to indicate a yes/no question.
Sign 'I', 'know', and then use the sign for 'finish' to show that you already possess that knowledge.
The location on the forehead is similar, but the handshape is different. 'Know' uses a flat hand with fingers together, while 'think' uses a single index finger pointing to the forehead.
To sign 'don't know', you start with the sign for 'know', but as you pull your hand away from your forehead, you twist your wrist outward so your palm faces away from you, usually while shaking your head.
You can tap it once or twice. A single, firm tap is often used in fast, casual conversation, while a double tap can be used for emphasis or when signing more slowly.
