Topic：What are you an expert at？How did you become an expert at this？

I'm expert at decorate coffee！When i graduated from my college.I didn't find a nice task.I just worked in a coffee shop.Because i was intersted in coffee that i dreamed to have my own coffee shop. I learned to use the Espresso Machine.This is a professional coffee machine.I have studied for six months.So far i can decote a variety of coffee.Such as latte，cappuccino，moca，americano and espresso so on.