Work out??? Oh no no no no no. If you get hired because you look good, either you are incompetent (work out and do it man) or you should not take the job. ALL jobs I interviewed for dug deep within my brain to get a taste of my problem solving skills and knowledge of programming. Good people skills help, if you can get along with the interviewers (a few laughs to ease the tension) then you have a better shot than someone else, but that's where it ends.

If it is a choice between a weak candidate who looks good, is fun, and has a ton of linked in buddies, or a strong candidate who is worse at all of the above, I doubt the pretty face is going to get the job.