There is a line in the movie Bull Durham where Susan's Sarandon's character is called "cute" by the guy she is with and she says " Cute? Baby ducks are cute, I HATE cute! I want to be exotic, and mysterious!" And he replies " You are, you're exotic, and mysterious, and... cute... and... That's why I'd better leave"
Cute isn't exactly what we think it is. It isn't "cute" like a baby duck. For a guy, there usually is a since of liking a girl with your mind, not just your penis. Both 'hot' girls and 'cute' girls do something to guys but in completely different ways.
I think rather than aim for "hot" you might want to try the happy medium between hot and cute: a stunning woman. Which is really what women think guys are saying when they say "hot". But it is different. Stunning women are sensual looking but still are classy enough to look like they didn't come off a stripper pole.
It's all about presentation. Think of it like this, what does a woman with short nails and soft pink nail polish make you think of? What about very long nails and pink nail polish? What about long nails and red polish? What about short nails and red polish? It's small difference but each woman is presenting herself as cute, trashy, or classic. This is the line between "sexy and classy" and "trashy and slutty", so make sure you know the difference.
Black heels in a good material are classy. Red heels made of cheap plastic, trashy. Smoky eyes are for night. Mid to upper thigh shorts with heels, classy. Booty shorts, trashy. Red lipstick should never be glossy. Never wear colored eye shadow or lower lid eyeliner. Neutral browns for eye shadow always! If you are going to show cleavage do it with long skirts or pants on. If you are going to show legs, don't show cleavage. Never gel, crimp or tease your hair, just keep it healthy and shiny. If you can't walk in heels, find sexy platforms because looking like a baby calf that can't walk is never sexy.
There is a reason guys love the 1950's look on women so much. It comes off feminine, well put together, sweet, and sexual. She looks like she is proud of being a woman and loves her body as much as he does but isn't begging for attention cause she knows he is already looking.
Sure when a hot woman comes into the room, a guy is always going to drop his jaw and have his eyes pop out of his head like he is a cartoon character. But if you try to be sexy with class, he is going to be thinking "Wow!", he just won't say it cause he has enough respect to not drool directly one you!