Language exchange@ Corner Coffee
At least buy $80 or above food or drinks in the cashier counter. After entering the cafe, think about the food and drink items for buying , you will then approach the cashier and tell them you have language exchange.
The cafe will then charge you $80 in cashier even you have the items less than $80. Thus, think about the food and drink items before you go to the cashier.
Note that the Fortune Building is a normal residential building , you have to press 1A on the keypads in order to get into the building and take the lift to 1/F , the corner coffee.