If you start to notice that he stares at you on a daily basis, and if you don't have anything weird stuck in your teeth, this could be a sign that he is into you. If he makes direct eye contact with you when you pass in the hallway and gives you a smile, he is definitely noticing you and interested in being friendly.
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.
When a guy stares at you, do not hang your head low and walk away. Stare back, with the most vicious, murderous look in your eyes. Let him know that you are not scared and are ready to fiercely protect yourself if need be. If you're lucky, he'll be ashamed and look away in under 30 seconds.
When you catch a guy staring at you and he doesn't look away, it means he is ready to show that he is interested and is here to stay. It could also be a sign of flirting where he indicates his romantic interest in you. If he doesn't look away while you look at him, hold his stare and see where it goes.
He's asserting dominance.
If he's looking at you intensely without smiling and even looks angry or stern, he could be trying to assert his dominance. In this case, his stare will feel like a challenge—in his mind, the weaker one won't be able to keep eye contact.
Avoiding eye contact is normal for him.
If the person in question is shy, has low self-esteem, or is autistic, eye contact may just be a bridge too far for him. He could also be experiencing other mental health issues. It's also possible that the culture he was raised in taught him not to look people in the eye.
He leans toward you during conversation.
People tend to naturally lean toward people they like in conversation, according to Battle. If the guy you like tends to lean his face in closer to yours while he's talking to you or listening to you talk, that's a good sign that he might be into you.
Staring can seem aggressive and predatory, and make your crush feel scared or uncomfortable in your presence. Try to casually glance over at your crush from time to time, or admire him or her using your peripheral vision. Try smiling or winking when you do make eye contact with your crush.
He'll stand close to you. He might place his hands on you casually, like touching your arm or your shoulder when laughing at a joke. “A guy who holds your hand or puts his arm around you is showing interest. We don't tend to touch people we don't like, so touch can be an indication of attraction.”
When a guy stares into your eyes and doesn't look away, he may be trying to size you up. Intently staring can be a good thing and might mean that he likes what he sees. Research indicates that in many cases of prolonged eye contact, both parties are interested in each other or maybe aroused.
When done without blinking, contracted pupils and an immobile face, this can indicate domination, aggression and use of power. In such circumstances a staring competition can ensue, with the first person to look away admitting defeat. Prolonged eye contact can be disconcerting.
Likely, they think you are very attractive, with something about you that they find fascinating. Some people have a light in them that shines regardless of what they wear or what they are doing. You may have amazing eyes, or beautiful hair or an electrifying smile, a face that is full of compassion.
Generally speaking, you should want to be around the person you're in love with. "You want to be with them more and get to know them better," says Firstein. Crushes fade and you may get bored after spending time with the same person, but with love, you're never disinterested.
If someone has a crush on you, there's a fairly good chance they'll be glancing at you more often than others. They might stare at you when they think you aren't noticing and might even look away if you catch them. Such sneaking glances at you may indicate they like you as well.
Flirting using eye contact is great because it doesn't require you to think of witty lines, or even to know very much about your crush. Eye contact is one of the most powerful ways that people convey attraction, but it's also subtle enough to be fairly risk free if you don't yet know if your crush is interested.
A guy who likes you will always be nice and polite in his approach towards you and he will always look for avenues to spend more time alone with you and get to know more about you- either by going on a date, through constant phone calls or chats- the subtle signs are always there if you pay close attention.
For those without a diagnosed mental health condition, avoidance of eye contact could be related to shyness or a lack of confidence. Looking someone in the eye while speaking can feel uncomfortable for those without a lot of practice making conversation or who tend to prefer not being in the spotlight.
It's possible for guys to try to ignore his romantic or sexual feelings if he's shy, uncomfortable, unsure about them, can't handle his emotions, or he thinks things are moving too fast; however, it's more common for guys to try to pursue these feelings instead of avoiding them.
If a girl avoids eye contact with you, it can indicate that she's interested in you or not. Also, it might mean that she avoids eye contact generally with people or doesn't want a conversation with you. Regardless of the reason, checking her body language and talking to her might tell you why she avoids eye contact.