Most Helpful Guy
Different glasses or contacts. Maybe a lower cut shirt, you have the boobs for it. Shirt also seems a little big for you. Some nice pink lipstick or a nice subtle red. Add Earings and you are good to go.
Most Helpful Girl
Different glasses. =)
Maybe even softer in color and a bit rounder? Try some on in the store, I'm sure you can discern for yourself which ones would suite you best.
Your hairstyle is really working for you, so don't change it... ;)