Even though it’s all about brightening the inner corner of the eyes and making you look 100% more awake. Highlighting is a very important technique used in makeup. If you highlight incorrectly or in the wrong place its a recipe for disaster.

“Highlighting the inner corner of the eyes has been around for awhile,” explains celebrity makeup artist Kira Nasrat. “When you add an extra layer of highlighter in the inner corner of the eyes it makes your eyes pop and look further apart.” (Marie Claire)

The placement of the highlight is very important when trying to create naturally beautiful eye makeup. Your lighter colors (whites, creams, and pearls) should be applied in the inner corners, the middle of the eye, and just under your brow bone. Apply your lightest colors first, and then move on to your darker shades.
Apart from the inner corners of the eyes you can use the highlighter under the eyes to hide any dark circles to create the soft focus effect. You should use a solid highlighter and apply it after foundation but before concealer.
P.S. For a night time look apply a more metallic shimmery shade than the regular beam highlighter used for the day.