How to add a face between two faces that connects them? I'm having a bunch of trouble with this. I have faces going in a circle, but I want to add a face in between two of the faces to create the closed circle, but whenever I select the 4 vertices or the 2 sides, it selects every single side or vertices between the two... Making my problem.
Also it sounds like you might be hitting 'alt-click' instead of 'shift-click' to select verts/edges.  Alt-click selects a loop of verts/edges, whereas shift-click adds or subtracts single verts/edges from your current selection.