If you know him well, then compliment a strong, positive personality trait. Say something about how confident, kind, or humorous he is. Compliments are a great way to make someone feel self-conscious and lead to blushing, but in a positive way.
Stress or embarrassment can cause some people's cheeks to turn pink or reddish, an occurrence known as blushing. Blushing is a natural bodily response that is triggered by the sympathetic nervous system — a complex network of nerves that activate “fight or flight” mode.
Physiologically, blushing occurs when an emotional trigger causes your glands to release the hormone adrenaline in your body. Adrenaline's effect on your nervous system causes the capillaries that carry blood to your skin to widen. Since blood is then brought closer to the surface of the skin, it causes you to blush.
You just can't stop blushing: When suddenly you just cannot contain your happiness, and are smiling for absolutely no reasons, then this is a sure sign of you falling in love with that special someone.
A blush can be a sign of attraction or of “hot” thoughts. Or a person may blush because she realizes she is unprepared for an important discussion or presentation – or at least feels that way. Sometimes it's enough to drive you crazy, but blushing also has a positive side.
Blushing is the reddening of a person's face due to psychological reasons. It is normally involuntary and triggered by emotional stress associated with passion, embarrassment, shyness, fear, anger, or romantic stimulation.
Blushing is one of the most common ways to tell if someone likes you. Either that, or you're just making them feel embarrassed and uncomfortable. But women wear blusher to mimic this effect and seem more attractive to men – it's all evolutionary.
Intense feelings like stress, anger, or embarrassment can cause the blood vessels in your face to widen. This is a normal reaction of your nervous system but can be severe if you have anxiety. If your emotions make you feel flushed, you could also notice: Sweating.
Blushing is an important way that humans display their emotions and it has an appeasing effect on people after a social gaffe. It "signals that you care about others opinions," says Dijk, and that's generally a good thing.
The body's natural stimulant, adrenaline increases your breathing rate, and causes your pupils to dilate. It also causes the blood vessels deep in your muscles to dilate, in order to get more oxygen and more energy where it's needed most. The veins in your face also dilate.
