Ways to Fake a Blowout: The FlatIron–Round Brush Method. First, revive limp hair with a spritz of dry shampoo or aerosol volumizer, like Tigi Bed Head Superstar Queen for a Day. Then, run a two-inch section of hair through a flatiron and immediately pull the same section through a round brush. This will add volume at the root and give the hair a slight bend at the ends.
We'll break it down in a nutshell for you: Put a small amount of a smoothing serum in your palms. Then, wrap small sections of hair around a round brush as you blow dry. Finish up by pinning each bottom section of hair into a large pin curl. For a more in-depth look into this routine, click here.