Question: how to do a half up half down bun with long hair?
Answer: Best Half-Bun Hairstyle for Long Hair Instead of grabbing your hair and immediately twisting it into a bun, first separate the top half of your hair into a tight ponytail and secure it with an elastic. Pro tip: If you're after a little extra volume, gently tug your ponytail to add some height up top before you move on.