Practice your facial drawing skills if you can spare a couple of hours. Portraits typically take a bit longer if you're aiming for detail and realism, but practicing your portrait-drawing skills helps you become a better artist. Pick a reference photo and plan out the head: draw its general shape, then create lines to place the eyes, nose, and mouth. Once everything is mapped out, sketch the face. snake game
Make sure you choose a picture where the person in question is eye-level with the photographer. That way, you won't be trying to draw at an odd angle.