If we are talking about those "natural" or "professional" guys who stand out on the dance floor, that's right. I am not going to lie to you. They usually have had long hours of practice and serious training.
However,...
.... you can look much better in the matter of days (even minutes), if not weeks. At least temporarily. Maybe it is a little bit of "cheat" method. But it works.
How do you do it?
It is simple three step process.
(1) Watch good dancers and find dancers you like.
If your body type is similar to them, it makes the following work easier.
(2) Choose one (or more) as your virtual mentor, and faithfully imitate his/her postures.
Focus on his/her posture. Copy the mentor-dancer's posture in a static manner. Take your time to be accurate. Use mirror or have you videotaped to make sure your posture is accurate and looks good.
Do you know animation is made by a series of static pictures? You move from a good looking posture to another good looking posture, and you will always look good.
Do it slow. I call it the "Tai chi" method. It will improve your coordination as well.
(3) Practice.
Practice makes your good posture permanent. At first, your "good postures" will not feel good, right, or natural to you. That's because you did not know how to assume good-looking posture and never done that before. You got to re-train your body.
Do you have doubts?
When I dance social ballroom waltz, most partners casually stand there at the beginning of the dance. But a few assume her waltz frame; left elbow pointing, chest expands, arms form a good frame, her head turns to left and spine makes a long line connected to left leg. Even if I have never danced with her or know nothing about her, I'd assume she took her time to train and knows what she is doing.
Alternatively, I bet you can guess dancer's level just from pictures. In the case, what are you looking at? Posture.
Even though we know nothing about the dancers, and even though these are just pictures, we do make our judgement.
[Why do they look good or trained, even though we don't see them dance?]
The real trick is, not-so-good-looking dancers can take the same postures as good-looking dancers in about a minute by directing or "choreographing". In the example of waltz, a total beginner can take the same posture as serious dancer in one minute instruction.
Now, we can say "both look good", at least in the static picture.
Maintaining the good-looking posture and dance with it is whole another game and another step. But you can take the first step by knowing, learning and practicing what postures look good.
Another very important part to look good in dancing is how you move. I'll write how to improve your motion later. It is a little harder than imitating postures (can't be helped......shrug).
Another very important part to look good in dancing is how you move. I'll write how to improve your motion later. It is a little harder than imitating postures (can't be helped......shrug).