Even if you're shy, try extra hard to look into his eyes while you're speaking with him. This will show that you're engaged and really listening to what he has to say. Listening to him, and showing that you're interested, is an easy way to flirt without making it extremely obvious.
Playfully tease them often and smile at them frequently. Make sure to never cross the line and never be offensive as this might hurt them and drive them away. Tell them they look nice or that you like their sense of humour. Compliment them often and notice their little things.
But you'll be one of the chosen few who know how to flirt without looking and feeling cringy. ...
Be original. If you've convinced yourself to talk to a girl or guy you're into, don't just take the easy way and use a dead pick-up line – they deserve more than that. ...
She's definitely flirting if she looks at you frequently, teases you, touches you when she's excited or happy, or texts you random, funny things. She might be flirting if she laughs at your stories, calls you nicknames, makes up excuses to talk to you, or adjusts her body language toward you.
Try this instead: Make great eye contact while talking to him. It's sexy, smart, and shows you're really listening. Laughing can be a great way to flirt—when things are genuinely funny. But if you're speaking to a man and you laugh at everything he says, you'll confuse him and come off looking a little ditzy—or nuts.
Activates adrenaline: There is a direct link between healthy flirting and stimulation of the nervous system. It encourages blood flow and also leads to the release of adrenaline. Increase in adrenaline in turn increases the ability to stay alert, to concentrate, and also makes us more sensitive to touch.
Well, in a nutshell, it's when two people are communicating in a playful way with each other, creating tension, energy, and excitement—and an important note is that it should be enjoyable for BOTH people. Unfortunately, we're not all natural born flirts.
Unlike polite flirts, “physical” flirts rely on body language to express interest. They may play with their hair, adjust their stance or use touch to interact with the opposite sex. People tend to perceive a physical flirt's everyday manner as more sexually charged, Hall wrote.