Do some people just "seem" to have an aura of good luck around them?

This may seem a little on the stupid side, but when my wife and I go to a casino, I can tell if she is going to have a winning night. She just seems to have a good luck aura that surrounds her. It’s kind of like when a woman is pregnant…...she just glows with good health. Question: do some people just “seem” to have an aura of good luck that surrounds them or am I just daydreaming?