Well girls if you are working then you should be aware about how much make up you should put on. Your make up for work should not be very heavy. And make a point to keep a mirror with you because as the day passes it keeps on changing.
Applying foundation: Before applying foundation makes sure your face skin is hydrated. That means you should apply a moisturizer first. Then apply foundation with brush avoid it applying with fingers. Match the color with your neck. Then apply powder to set the foundation.
For routine: Keep your makeup very light and natural for daily normal routine. Keep some lip gloss with you, eyeliner, some eye shadows and a blush.
For evening dinner: If you have an official dinner party. Transform your makeup. Apply a bright shade of lipstick, can go for some shape when applying eyeliner, and change the color of eye shadow. Use a bright shade instead of basic one. Again change the blush also.
For a big meeting: Again if you have an important meeting at hand. Change your shades from lighter ones to darker ones.
These are some basics which can make you look perfect and create an official look which is praised by people at your workplace.