1. Share a milkshake at an old-school diner
Slide into a booth at South Yarra's Soda Rock Diner and look into each other's eyes over some fries and a milkshake. The 50s-style American diner has mini jukeboxes at every booth if you want to listen to some old-school tunes, and they do a mean apple pie à la mode if you want to sweeten the deal.