You know someone likes you or is flirting with you when their body language changes around you. They will become more relaxed, look directly at you, lean in closer, and have their feet pointed towards your body while talking to you.
If he compliments your eyes, the color of your hair, your laugh, or an admirable aspect of your personality, then he's definitely flirting with you. He may even tease you a bit while flirting with you, like if he says something like, "That's the brightest sweater I have ever seen," but he's still flirting with you.
Another clear sign he likes you is if he is actively trying to hang out with you, or help you, or find out more about you. There are also indicators like eye contact or compliments, and showing that he's interested in your physical appearance, or who you are as a person.
Clues to spot flirting are body language, such as smiling, leaning forward, and touching, and verbal cues such as compliments or references to being available. You can also ask yourself if the person's behavior is consistent over time and whether they act differently with you than they do with others.
He finds small ways to touch you.
He's always finding little moments to share physical contact with you, whether by putting his hand on the small of your back when he passes by you, bumping your shoulder with his while he laughs, or playing with your hair.
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).
Now that's he's closer in your space, they will start to engage in subtle physical touches. That is a guaranteed cue that he's flirting. He will find any excuse to get closer and touch you. That could be a light brush on your arm, a tap on your shoulder, or brazenly putting his hand on your knee.
But when a man likes you, his manner of flirting will be quite different. It may be little, subtle differences, but they will be there. So pay close attention. If his flirty compliments are: more thoughtful and sincere, and he is especially sweet and attentive, eager to make you happy, that shows you mean a lot to him.
Things You Should Know
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.
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.
Giving compliments, using suggestive body language, maintaining eye contact, and perking up when you are around this person are all subtle signs of flirting.
You Can Feel It
This one is probably a no-brainer; when someone is attracted to you, they want to touch you. Touch releases the bonding hormone oxytocin. So, it is an instinctive way of trying to strengthen your connection. However, not all touches mean the same thing.
Guys that are into you often use lots of emojis, text first, or even double text. Watch for in-person signs, like holding eye contact, respectful little touches, or leaning in close. A follow-up text after a date or hangout, or a raincheck when he can't make it are sure signs that he wants to spend more time with you.
When a man keeps his feelings secret from you, he may act nervously, such as playing with his fingers or running his fingers through his hair. So, if you notice him being jittery around you, even shaking slightly, or having difficulty talking to you, it's likely that he secretly likes you and is trying to hide it.
Sincere. This is the most common flirting style, and that's probably for the best. Sincere flirts are direct and honest in their interest, and they aim to build emotional connections from the beginning. They'll strike up a conversation about the book you're reading.
Some flirting signals are obvious, like touching, and other flirting signs, like eye contact or compliments, are more subtle. Actions that you think might just be friendly gestures can actually indicate romantic interest.
They are interested in what you have to say and ask you lots of questions. They laugh at your jokes, even the lame ones. They initiate physical contact. They try to find space where you can talk more privately (this does not always mean sex, but it often means they wish for more quality time with you).