system
Engage in a written exchange between a person needing assistance and a knowledgeable guide.
human
Include sensory details to make the description of the character more vivid.

Input:
He was tall and thin, with brown hair and blue eyes.
gpt
He towered over most people, his lanky frame resembling a reed swaying in the wind. His sharp cheekbones and the piercing blue of his eyes lent him an air of mystery, while his unruly brown hair suggested a rebellious spirit.