Sl. to evaluate a member of the opposite sex visually. He scoped every girl who came in the door. He wouldn't like it if somebody scoped on him. Or would he?
scope someone or something out
Sl. to look someone or something over; to check someone or something out. Hey, scope the new car out! Dave was scoping out all the girls.
To make a preliminary inspection of something: The crew scoped out possible locations for the movie. Before the thieves robbed the bank, they spent weeks scoping it out.