Lipstick. For the sake of all things black and fluffy put chapstick on underneath! Lipstick by itself will quickly dry out, creating unattractive cracking and flakes when speaking, and immensely drying out the lips.
When applying makeup, don't pull the skin under the eye. I first learned to put on makeup from Youtube videos and I watched a girl stretch her eye until the skin was taught and then apply eyeliner. This gives you a flat surface to draw a line of makeup over, but it will mess up the delicate skin by the eye, creating huge bags under the eye. I'm still trying to break myself of this habit.
Under-eye moisturizer. Pat it on using the ring finger (the most delicate of fingers) don't rub it under the eye. Rubbing the under-eye also enhances bags.
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