I noticed that the hottest girl I had ever seen at that time was watching me when I entered the classroom. When I sat near her, she looked at her friend with that suggestive look and smile. After the professor's lecture was done, I asked her out and she said, "yes."
Another time that a girl looked at me like that was at a live bar. A tall blond singing woman saw me enter the bar. She looked at her band mate with that smile...