Or maybe just someone walking past you, and you think, how did she get that volume on top? Or better yet, how did she make it stay, its 3pm already!?
It's not as hard as you think.
To reproduce the classic height on top of your head, which has been around for decades, you need either one of these two tools: A large-barreled curling iron, or large-barreled hot rollers
I personally love the curling iron, but for people with finer hair, the hot rollers seem to help with keeping hair in a style for longer.
You want to lift each section vertically, I usually start at the front, and spray with a dry texturizing spray, I love Oribe's, and/or hair spray. Then use the curling iron, create a large curl that folds towards the back of your head, then spraying again once your done.
If you are using hot rollers, you want to make sure they are as hot as they can be before putting in your hair. Once in your hair, let them sit until they are fully cooled down - can take up to 20-30 minutes or so. Then spray again before removing from hair.
Style how you want them to stay, then spray again.
**If you have ultra-fine hair, I recommend teasing at the root after you've curled the hair, then style and spray again - this will help hold the hair in a curl for a longer period of time.
You want to spray enough to keep the hold, but not too much where your hair looks crunchy or the spray creates flakes. Find your happy medium!