Half updo back tuck- Emma hair option- This is a loose, fancy-free and still very romantic way to wear short hair. Pull back half of your hair and put it into a back tuck. Then let the remaining hair hang down.
20 Great Updo Styles for Short Hair - Styles Weekly
"How To: The Messy 4 Braid Updo" This requires more product than I generally use, but I really like it. I'm thinking I might give it a go for a formal event I'm going to this weekend, assuming I can find a chance to try it once or twice first!