Never, Ever smile when you apply blush, it ages your instantly, yet almost every women I know does it!
The reason you should keep a straight face is that when you smile your create lots of tiny wrinkles, however young you are. The blush cannot penetrate into these lines so when you relax your face you are left with little lines that look just like wrinkles.
Also, when you smile the area that protrudes is not the best place to put blush. It’s too close to your mouth on a relaxed face. Cheek colour needs to be high and closer to your eyes than your mouth.
Look at a summer shot of a model or film star and you will see the sunkissed glow really high up on the cheekbones.
