How do guys look at a girl they think is pretty/cute/attractive?

Anonymous
If a guy sees a girl he is attracted to, how does he look at her differently than other girls? Does he stare at her longer? Focus on certain areas of her face like eyes/lips? Is there any way to tell if a guy is attracted to you by the way he looks at you?
How do guys look at a girl they think is pretty/cute/attractive?
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