Painting Portraits

I have always been drawn to portraits. The eyes, the expressions, the "feel" of someone.  I've been attempting to gain a grasp of just how to paint a portrait...most of my trying has been in acrylics.  While I have had some success, I went to a workshop this weekend and it was in oils.  Boy did that put a totally different spin on the process!  When life allows, I'll be trying to paint another oil portrait.  I also had probably the best teacher there ever was!  I love it when people who "can" share their knowledge!