One way to do it is to underexpose to keep the detail in the snow, then in post-processing you can keep the details in snow and skin tones. In software like lightroom (got to shoot in RAW to preserve as much detail as possible), I would increase contrast, blacks, recover (recovers highlights). Also I'm not sure how dark was the jacket/pants, but I usually like my blacks more black.
By the way, after doing all this adjustment, the face might not look right, so you would have to use a local brush (I forget the exact name of this tool in LR) to turn down, clarity, contrast. Also you would have to set the correct exposure for the face using this tool etc...
Not so perfect example (click on them for bigger pics)...
And here are couple taken with Olympus e-p1 which has very little latitude in the way the photos can be manipulated.