Someone who gets nervous and doesn't know how to dance might do what when they attempt to start dancing?\nOptions:\n- wallflower\n- stand down\n- sitting still\n- stand still\n- standing still
Step-by-step reasoning:
stand still
When a person gets nervous, they stand still.

Someone who doesn't know how to dance might stand still when they attempt to start dancing.

.

Therefore, the answer is stand still