Here is a simple hairstyle for every day. Since my hair is too short (plus I'm too old) to put fancy braided hearts in, I'll decorate for Valentine's Day with my heart flexi-clip from Lilla Rose.
twisted it up, and put a clear elastic in. Then I pulled up the front half of the rest of my hair, adding in the twist, and then held it together with the flexi-clip. This one is size small. The elastic is hidden behind the clip. If yours hangs down below where you can see, you can undo the elastic.