How to look hot (yet not vulgar) on pictures? How to prepare? (1 month to go)

Hi guys!

I have no experience in modelling whatsoever. In one month from now I have booked a photographer for a "fashion photoshoot". I actually need those pictures for my professional profile but I don't need those stiff "corporate-style" pictures as it my profession two aspects are paramount:

- My cool/chill personality should shine through.

- I need to looks as good as possibly (sexy without being vulgar).

People looking at the pics should this: She's cool to hangout with. (My professionalty is assured my my education and experience. I don't need to put on a business suit and glasses to underlign this.) And it's perfectly fine if men would think: She's hot af.

What looks good on pictures? Should I focus on how to pose in front for the camera?

Any recommendations would be highly welcome!