Depends on the shouts I'd have. If I had either the Whirlwind Sprint or the Slow Time shouts, I'd make a living as a professional athlete. Just imagine me, slowly losing against Usain Bolt, only to snatch victory from him at the last moment with either a mad sprint or just strolling by him all chill and cool.
Frost Breath and Become Ethereal would both be great assets to a firefighter. I could use Frost Breath to put out fires, or if all else fails, just grab onto innocent civilians and jump from the top floor, shouting myself essentially immortal mid-fall.
Kyne's Peace and Animal Allegiance? One badass animal trainer. Or alternatively, a tour guide. "You peeps wanna see some crocs?" "HELLYEAH!" "Ookay. RAAN MIR TAH!" *crocs jump out of nowhere, spazzing the hell out* And the crowd roars with cheers.
But my favorite would be to become a SWAT hostage negotiator, using Disarm and Dismay to pretty much rock out at work everyday. Everyone would be all messed up at the beginning of a hostage situation, and then when I'd show up, the criminals would willingly surrender, knowing they'd have no chance to win.