Having a beautiful and intelligent woman by his side can bring out some surprisingly revealing habits in a man.
A little taller

Notice his posture. Some men will unconsciously pull their back straight, hold their head high or be a little more lively when standing next to a woman they greatly respect. This isn’t an act most of the time. When you’re proud to have someone standing next to you, you may find yourself sitting or standing a little differently.
Her opinion

If something exciting occurs, he may naturally glance at her to see her reaction. It may be something said at dinner that took him off guard. Perhaps some news. Or it could be a joke that everyone else is laughing at. In that split second, he realizes that what she thinks matters to him. He cares about her mind, not just her appearance.
Change in intro

Listen to how men introduce women they’re impressed with. More often than not, they work her occupation, something she’s done, or an unusual skill into the conversation rather than just saying her name. It’s not always bragging. Sometimes they’re just excited for others to know what he already knows about her.
He stops performing

If he falls for a strong, smart woman, he won’t feel the need to constantly show off. He doesn’t have to embellish stories or talk over everyone else just to make a point. And he won’t feel the need to prove he’s the smartest person in the room. He can let her win when impressing people because he isn’t threatened by her intellect.
He brings her in

Rather than talking on her behalf, he’ll frequently make room for her to talk. “You know more about this than I,” he may say, or he’ll swivel towards her when a discussion veers into her territory of expertise. There’s a subtle difference between boasting about your partner and legitimately allowing her to shine.
Other eyes get noticed

Men often know when someone else is attracted to his girlfriend, even if he acts like he doesn’t notice. He might subtly shift closer, pay more attention, or nonchalantly make their relationship apparent. If the relationship is secure, this doesn’t have to turn into jealousy or possessiveness. It can just be increased awareness of how many people notice her.
Questions get better

If he admires her smarts, chats often delve deeper than “How was your day?” He asks her opinion on decisions. He asks what she thinks about something he’s dealing with. He comes to her with interesting topics because he knows she won’t bore him. Her brain becomes one of the many things he actively seeks.
Credit when it’s due

He doesn’t silently take in her ideas and later announce them as his own ideas. If she recommended the restaurant, figured out the problem, caught the error, or offered helpful advice, he’s not embarrassed to say it. A man who truly respects a smart woman doesn’t have to minimize her input to save face.
Photos suddenly matter

A man who is usually indifferent to photos will suddenly find himself wanting to take pictures when he’s with an attractive woman. He’ll ask her to take a picture with him, smile properly, or add one of them to his profile. There can even be a sense of pride taken in simply being seen with someone so attractive.
Reasons to be close

His hand may unconsciously rest on the small of her back in a crowded room. He may stand a little closer to her than necessary. He may reach across and take her hand more often than not. It doesn’t have to stem from jealousy. Sometimes physical touch is just an unconscious means of showing affection and simultaneously broadcasting to everyone that they’re taken.
Happy at compliments

When someone tells her she looks beautiful, he doesn’t react by looking surprised. Instead, he flashes that little smug smile. He doesn’t need to say “I know” because you can already see it on his face. Sometimes when someone compliments her, he looks just as gratified as if he were the one receiving the compliment.
Watching her walk away

She stands to place an order for a drink or walks across the room to talk to someone. His eyes linger on her for a couple of seconds more than they should. It’s one of those subtle things people don’t premeditate. Physical attraction can still trigger that instinctual second glance even after you become acquainted.
He raises his game

Being with someone you admire can foster a healthy feeling of wanting to better yourself. He might take his career more seriously, take better care of himself, read more books, or might dress nicer. He might finally do those things he’s been putting off. This is not because she asked him to, but because being around someone great can make being stuck make you feel uncomfortable.
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