Facial features, skin tone, undertones, and preferences to suggest tailored product recommendations (like foundation shades) and makeup styles that would best suit you.
 
"Explain the basics of applying foundation and create a comprehensive shopping list for beginner makeup."
"Show how to contour for a round face shape."
"I want to learn to create siren eyes; break it down in the simplest terms and provide example images."
"Recommend two advanced eyeshadow techniques and provide step-by-step instructions."