Good question! The disco look is actually easier to achieve than you may think. First, start by selecting your eyeshadow shade. Fortunately, most disco looks only used one eyeshadow color, but it was always sparkly! Take a fluffy eyeshadow brush and apply this one color to the lid and crease. The goal is to accentuate the eyes using color and glitter, so no need to define the eyes with multiple colors. You can use a brow highlight or concealer around the brows, but that's optional. Next, apply eyeshadow to the lower lid. You can either use this same shade or a darker color, whatever you prefer. Then, use lashes. You can either use fake lashes or mascara. People wore false lashes in the 70s, but they were on the natural side. If you're like me and don't like wearing fake lashes, you can opt for mascara. Again, it's whatever you prefer. No matter which product you use, apply either lashes or mascara to the lower lid. You want your brows to pop, so go heavy with the bottom lashes. From here, apply the brow product of your choice. Naturally full brows were most common of the era, so you may only need a pencil or brow and spoolie to accentuate the fullness. But if you have thin brows, defined and arched brows were also popular in the disco movement. Since disco makeup was meant to be seen, you can use mulberry, plum, or even brilliant red lipstick. But pastel colors were also popular, and I suggest using a light peach or pink if you want your eyes to steal the show. The rest of the face is very subtle. Use a natural-looking blush such as peach and apply it across the cheeks.