I use a spray bottle to lightly spray my extensions and then set them in non-heat curlers to dry in shape. The bigger the curlers, the more loose the curls will be and will drop quicker. The smaller the curlers the tighter the curls will be and will become frizzy if brushed out.
Falsies: Siren by House of Lashes
Circle Lenses: Geo EyesCream Rayray Gray
Lipstick: Maybelline Fuchsia Flash
Curlers: From Walmart