This is how you sign Attentive in American Sign Language.

How to sign

To sign "Attentive" in American Sign Language (ASL), create 'B' handshapes with palms facing each other, then move your hands toward the sides of your face.

To sign "Attentive" in American Sign Language (ASL), form 'B' handshapes with your palms facing each other and then bring your hands towards the sides of your face.