I have been hosting International Exchange Students (Age 20 to 28) for 4 years during my High School period. Though majority of them were from South Korea, I have also hosted students from Europe. I will tour them around places like the Merlion Park, MBS, Singapore Zoo, Chinatown, Little India, and also Pulau Ubin (a different feel from the City). As I love to eat, most of my tours are food-centric. I would bring them to try out different type of local cuisine.
I am also able to speak Korean thus Korean tourists who prefer Korean-speaking guide, I may be ideal for that.