look up any word, like spook:
 
1.
(noun) A person who looks around when talking to you, to see if there's anyone more interesting about.

shoulder surfing

From Douglas Adams' (of Hitchhiker's guide to the Galaxy fame) book 'The Meaning of Liff'
Adrian is such a sconser, he was checking out my sister the entire time we were talking...
by thomas callan July 26, 2006