"What does Lily look like?" Is asking someone to describe her appearance. "How does Lily look?" Is asking for an opinion of her appearance. "Have you seen my daughter Lily?" "I don't know, what does Lily look like?" (Followed by a description) "Lily got a new dress today. How does she look?" (Followed by an opinion)

What does/do Lily look like? VS How does/do Lily like? The correct one is "What does Lilly look like." This is how you ask about someones appearance. How does Lilly look? You could also use this sentence to ask about appearance.

What does lily LOOK like- is asking to tell you about her appearance or looks- for example, she is tall with brown hair. HOW does lily like ... There needs to be something here for you to describe- for example you might ask, how does like like her eggs cooked? Hope that helps.