As I've laid out in the Dokumentarfotografie post, I do a lot of documentary projects, and my preferred working style is very much of documentary nature. However, I am often asked to do portraits, and I've literally shot hundreds of them during the last 12 months.
The latest one is of Eric Wallner, the new CEO of the Torpedo Factory (see the whole story on patch.com):
It was shot at f/2 with the 1.8/45 on my Olympus E-M5. This little gem of a lens is very sharp and has nice out-of-focus rendering. I use it for all my portrait work. It's one of those lenses that have really contributed to turning Micro Four Thirds into a system that's suitable for serious, professional work.