1. To make a preliminary investigation, inspection, or analysis of something. A noun or pronoun can be used between "scope" and "out." We need to scope out some locations for the music video this weekend. Someone's gotta scope the joint out before we can hit it.

2. verb, slang To look with interest at someone who one finds attractive. A noun or pronoun can be used between "scope" and "out." He spent the whole date scoping out other girls, so, no, I don't think it went very well. There's some girl at the bar scoping you out, Chris—you should go over and talk to her.