It has many meanings, it really depends on the context. It could mean disgust, attraction, jealousy, astonishment, desire, or she saw something drop out of your nose, and then looked back up after she followed it with her eyes and it hit the floor to see if you noticed her seeing it happen.
He's Attracted to You
If a guy has met you before and continues to scan you from head to toe every time he sees you, there's a 99% chance he's attracted to you. This behavior is common among shy guys and men who know you're in a relationship. If you're single and open to his advances, consider other signals.
If she's giving you a friendly look or watching you do something fun, staring might be a sign that she wants to be friends. If she's gazing deep into your eyes while smiling and/or initiating touch, she may have a crush on you. If she's glaring at you, she could be mad at you or someone else in her life.
She may have found you interesting or good looking and wanted to look at you! Rejoice! But it isn't time to send over a drink yet! If she is interested in getting to know you, she will smile, hold your gaze and look back a number of times!
Height and weight are right on top of the list of things women notice. “Too much or too little of either immediately classifies the man as unattractive to women, and closes the door before less physically obviously features (such as confidence) can be determined,” says Dr Patzer.
Eye contact can be a powerful flirting technique. In a study published in the Journal of Research in Personality, researchers found that participants who gazed into each other's eyes for prolonged periods were more likely to report feelings of affection for the other person.
Being confident and smiling.
Nothing shines brighter than confidence and being more than comfortable just the way you are. Watching a woman be confident in her own skin is something that a man just cannot look away from. Not to forget - a good smile goes a long way!
He's Staring at You
If you notice he is making more eye contact with you or you catch a guy staring at you, he is probably attracted to you. He may be enthralled by your good looks and may be fantasizing about kissing you. Perhaps he stares at you and smiles; that could mean he likes you, too.
If her attention is primarily on anything other than you, and if she doesn't seem excited to be spending time with you, that's the number-one universal sign that you're not her #1 choice. If she: Is constantly checking her phone. Acts like there's somewhere else she needs or wants to be.
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.
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.
Full body gazes begin with an extended gaze, are followed up by a longer look over the mouth, down the body and back up to the eyes. This type of eye contact is brazen and highly sensual. The person may respond with a similar gaze or appear to blush.
Women desire a man who is honorable, fair, and ethical. In terms of relationships, having integrity can help strengthen the bond a man has with a woman, as his moral principles will guide his behavior and help him to be the best partner that he can be.
Your Hair/Beard
Your hair is the most noticeable thing to a woman and usually it helps them decide if they really like it or understand it! Maybe because it's the topmost physical feature on your body. Most women do not prefer unkempt or untidy hair and neither are they big on man-buns, undercuts or mushrooms anymore.
Girls look for guys who are cute and good looking, but it's a personal taste as to what matters the most. Girls are much more interested in a warm smile and nice eyes (these may be what a girl looks for in a guy physically), but it's what's on the inside that counts.
It depends on the guy and the kind of look. If the guy is handsome/cute, we feel good or might even return the glances. If the guy is handsome/cute, but is staring , we get uncomfortable. If the guy is not so handsome, we don't mind the look or don't bother.
It means that she's attracted to you but she doesn't want to embarrass herself by making it seem obvious. So she steals a glance in your direction, hoping you don't detect her doing so. This is why she looks away when you catch her looking at you.
As soon as the date is set, text her enough to keep her excited. But never text for the sake of texting or getting to know her. If you meet in for example a couple of days, you might text her every one or two days up to the date. If you are only meeting up in two weeks, you might text her every three days.
She will test you by not texting back immediately or keeping from initiating a conversation. This is a sign that she wants to see your interest in talking to her. She wants to see if you are trying to reach out to her. Sometimes, she may play hard to get to see if you will stick around.