A flirty guy will talk about his love life, best date, romantic nights, and related topics. The reason is to allow you to have a glimpse into his romantic side. If he is friendly: A friendly guy will talk about his interests, hobbies, work, etc. They will rarely mention anything related to their love life.
A friendly guy will definitely make eye contact during conversation—it's only the polite thing to do, after all—but if he looks at you randomly from afar, he's interested. If you ever catch him trying to sneak a peek at a part of your body other than your eyes while you do talk, he's definitely interested.
Time and time again displays of niceness and friendliness are perceived as some form of sexual interest. Whilst for many women, showing a smile and being friendly is what a decent person does, men often misinterpret this signal as flirting or a sign they are interested sexually.
Harmless Flirting
This can mean buying a drink in a social setting, freely giving compliments, side arm hugs or other non-sexual touches, a platonic friendship. The term “harmless” is only applicable if you are willing to disclose this behavior (without shame or concern) to your partner.
Small, subtle touches like slightly brushing your hand against theirs when you're walking, gently tapping them on their arm when they make you laugh, or touching their arm during a conversation is one way to show someone you're interested.
Whenever you both meet, if it always ends with sex, it might be a sign that he is using you. If he is making time only to sleep with you, he might be interested in physical intimacy rather than a committed relationship. If you both meet and he just wants to jump your bones and then leave, he is using you for sex.
Guys tease and make fun of girls they like because they want to be noticed. Contrary to popular belief, guys always seek attention from girls—especially the ones they like. Guys try to hide the fact that they like the girl by teasing her. In a way, it's still flirting.
Can you feel when someone is attracted to you? Yes. When someone feels you are an attractive person, some things come up between you that aren't there otherwise. The clues aren't always obvious, but you can see some of them by paying attention.
He Smiles Often
If he likes you, being around you will make him happy. This means you'll notice him smiling and laughing more when he's with you. He may even have a hard time not smiling because he's excited to be spending time with you.
If a boy really has a crush on you, then he'll be likely to give you all of his attention. He'll turn his body toward you, make eye contact, and won't look around for his other friends or text them during your conversation (unless he uses his phone as a crutch because he's nervous).
Paying attention to a man's body language clues can help you decipher whether he is interested. If a man likes you, he may sit facing you with his legs spread open. This indicates that he is open and receptive to you.
Eye contact is one big indicator, as well as frequent smiles and laughter. An open posture and facial expression are also signals of attraction. Acting fidgety or nervous, or blushing and getting sweaty palms, is also a sign that someone is attracted to you.
Men prefer a woman who can stay calm and relaxed. Beauty is more than make-up and a fancy haircut. Men find women more attractive when they are neat and clean. Men find women who smell nice, who have clean hair and hydrated skin more attractive than a face perfectly covered in makeup.
Innocent flirting is a lighthearted and playful form of social interaction that involves casual, friendly banter, compliments, and teasing without any serious intent or expectation to pursue a romantic or sexual relationship.
In a research project, Jeffrey Hall, Assistant Professor of Communication Studies at the University of Kansas defined five flirting styles; playful, traditional, physical, sincere and polite.
They Smile A Lot
If a person smiles at you often with a broad, ear-to-ear grin, they're making it known that they're into you. They like the way you make them feel and what you have to say. If they're showing you a lot of teeth, that's a great sign.
He Smiles A Lot
But you tend to know when a guy is undeniably interested in you by the frequency of their smiles. Typically, a guy doesn't smile all that much. But if you notice that a particular guy is smiling a LOT, it means that he's attracted to you.
“Many men are fundamentally insecure and always feel a need to prove their masculinity,” said Gratch. “In that sense, if a woman smiles at them, they perceive it as an affirmation of their sexual prowess and as a sign of a woman's interest.”