Mild rosacea example:
Causes redness on cheeks nose, forehead and chin that mayy come and go. Burning sensation upon putting on products and more sensitivity. You may start to notice that the flush happens after certain things like eating spicy food, wind, wine, caffeine, etc.
A pink tone to ones face is common in fair complected people, but it generally doesn't look quite the same as rosacea. With rosacea you might see a fair amount of tiny broken blood vessels and capillaries at sights of redness. If one doesn't notice the early signs of rosacea it will eventually progress to more permanent flushing (moderate rosacea) and acne-rosacea.