In the comic books, main characters are often seduced by another in this position. There is an even cafe that is dedicated to those female who can experience this situation with good looking male figurine who states suggestive comments while banging one hand on the wall.
From looking at the comic version, this situation seems romantic as two characters are close enough to touch but not enough to be in the arms of each other but imagine if a man comes up to you and bang one hand on the wall, blocking your way and seducing you. Of course if you like the person, you may find it flattering but what if you have no interest in the guy. What if it is the stranger?
The situation can take on a unromantic, extremely uncomfortable and threatening gestures depending on who, when, what,where and how!