Help with Approach to project.(person smoking)

[nubian-anubis]

I would like to make a video of a person smoking.Using particles for smoke in houdini.

it will be Live action footage of a persons face,with some stylized smoke coming out of his mouth (possibly slow motion)

I would like the smoke to interact with the persons lips,and nose as it comes out.

How would I approach this?,is it worth modelling a head and tracking it to the live action face,and then using that to make the smoke interact with the face..Or does anyone have a better (or simpler) solution?

I have attached an image of the effect i'm going for.

thanks in advance for your help.