Nodding is also a symptom of "nodding disease", a yet unexplained disease. The player can answer questions by nodding or shaking their head. Differences in nodding and shaking the head to indicate agreement and disagreement also exist. An amazing time of learning, listening, laughing, and even head nodding to music. Locke gives a final salute to Bain, silently nodding at Dallas as he walks away. The inflorescence consists of nodding spikelike racemes with numerous drooping flowers. The user could also perform visible gestures (or "e-motes") such as waving, nodding, or dancing. Head motion could show a nodding "yes". Speech was indicated by continually nodding the puppets' heads. Their courtship involves the male and female nodding their heads at each other. Flowers are spreading or nodding (hanging downwards), dark brown, sometimes mottled with yellow. Only nodding her head to the details. In formal tea ceremonies nodding the head or saying "thank you" is more appropriate. Flowers arise on nodding stalks a few centimeters tall. They are responsible for the nodding and rotation movements of the head.