Basically the same sort of thing as a girl next door. He's sweet, charming, and quite cute, although he doesn't seem to know it.

Guys next door don't really dig the whole taking advantage of a girl thing, and although able to be one of the lads, they can be great mates with girls as well.
They dress casually, and although they don't try to stand out in the crowd or be the centre of attention, they still shine.
Guy's next door usually have one of those laughs or smiles that is able to make you feel instantly happier.

As part of a relationship, guys next door are typically the kind who seem quite casual about dating- they don't try it on fast. But, as with a girl next door, the guy isn't seen as being that involved in a relationship... but anyone who's been in one with a guy next door will know that they're dark horses, and alot more fun and pasionate than you first thought.

So if you find a guy next door (and you happen to be a girl next door)... this one's a keeper.

Bring him home to the parents no problem!

Every guy may have his specific girl-next-door prototype, but in general, she's the girl whom you always admired from afar and were afraid to approach, fearing that any erotic projection toward her would ruin her image as a decent, pure and almost virginal womanly ideal.

She's (in your mind at least) untrodden ground; unspoiled by other men and so sweet-natured it almost frightens you to think of her in explicit sexual situations. Almost. Here's another example: Picture your sister's best friend from when you were kids. In your mind she'll always be that 10-year-old cutie who played with you in the park. Only, when you catch up with her 10 years later, she's still a cutie, but all grown up and someone you can trust and connect with on so many new levels. The intrigue grows.

Similarly, she could be a friend's cousin whom you met at family occasions over the years. Or even a new employee at work who is shy and unassuming, but still gives you that "she seems so nice, I'd love to talk to her" feeling.

The girl you grew up knowing since you were little. Usually one who lived close enough for you to walk or ride a bike to her house to play. Your love for her is innocent and sweet, just like her. You've always thought of her as a best friend.

Well, I mean there's those girls who are just "Hollywood" types. They're all dolled up and sure they may look great on TV/movies, but they need make up to do so. Then there's the girl next door whose beauty is understated, and doesn't need all the makeup, cameras, and bright lights to look pretty. She's just pretty without all of that.

A good fucking movie, features the beautiful Elisha Cuthbert. Very funny.

people that know your all your bussiness even when you DON'T tell them.

A guy known for his kind, sensitive, caring personality rather than his good looks and charm. Usually a bit of a geek or nerd, the guy next door is the guy who is a really good friend to girls, but who never gets a romantic relationship with said "girl friends". Usually is very shy and reserved.