Sometime after reaching level 20 in the game, you'll receive a call from Kim Kardashian, who wants to take you shopping — in Toronto, which you've just unlocked as a new location!
Travel to Toronto for 80 and swipe left. You'll find Kim standing beside the Revolution Sushi Bar. Tap the yellow speech bubble next to her to begin the goal.
Kim will take you into the shopping district of downtown Toronto, and ask your opinion when shopping for herself and for you. She won't respond to your reactions, except when she's trying to find a dress for a red carpet event.
When the shopping session is over, you'll reconvene on the streets of Toronto. Kim points out the abandoned Chevier Toronto building and invite you to join her for the official opening party for the Revolution Sushi Bar.