For different occasions, different outfits are required. For casual events, you wear something that is not too showy and for formal events, you tend to wear something more elegant or glamorous. Well, your make up must correspond, because each time you apply make up you are making a statement and evoking a certain tone. So you want to make sure your make up is in proportionate with the level of formality in what you are doing, otherwise you might feel as though you are wearing a ball gown to a baseball game.
For a casual, everyday look, you want your make up to be simple but still pretty, after all the point of make up is to accentuate your finest points and emphasize your natural beauty. This is never more true than when getting ready for something casual, like work or school or even just out to the movies with friends or on a shopping trip. For this case, you really do not want to use a lot of eye shadow or bright lipstick, instead think of the natural colors of your face, the natural hues in your skin, and imagine that your mission is to even it all out and make it smooth and enhanced.
So, for your eyes, you want to make sure to avoid colored eye shadows, and instead choose ones that only bring out your skin tone. You can use shades like soft, rosy pink, or gentle coral, light bronze, or even a golden shade if you have a sort of gold skin tone. When you do this, you will see a slight shine on your eyelid but nothing that will appear too showy. Then, you want to do your eyeliner with moderation, almost so that it seems like you are not wearing any at all. Only line your upper lid and refrain from your bottom lid, as that can create an effect too dramatic for a casual occasion. Use mascara, but not excessively, and apply a light amount of blush. If you choose to wear lipstick, wear a soft color, like light pink or maybe mauve, and then apply a light coat of gloss. This natural look is the perfect thing for any casual occasion.
Now, for something more fancy and formal, you will want to choose whether you want to emphasize your mouth or your eyes, because to do both is to welcome a cosmetic train wreck. If you want to emphasize the mouth, then make sure your eyes are lightly shaded, just as you would for the casual look, and then choose a vibrant lip color. This way, you will emphasize the bottom half of your face but keep the top subdued.
Now, if you want to emphasize your eyes, then keep your lips neutral and enjoy using vibrant and brilliant shades for your eyes. Usually, you will have the lighter shades closer to your eyelid and the darker ones near the corner as a sort of shade. Do not over do the eye shadow and never go so far up as to reach your brow bone.