YES

We have this adorable video of Kalia at about 10 months shaking her head "no" to her daddy.  Tristan nods yes and she consistently responds with a head shake.  We thought it was adorable and laughed at her cute antics.  It proved a good indicator of her later attitude.  We get lots and lots of "no's" from her. 

Amalyn, at 8 1/2 months started nodding "yes".  Hopefully this is a good indicator of toddlerhood :)