On March 21, the actor shared a set of photos on his Instagram of him attending the 2018 first level barista certification exam, and wrote, "I'll make you even better tasting coffee. A man who knows how to concoct the taste of coffee." 

Some time ago, Son Ho Joon showed up on the streets of Yeouido with his fellow actor Yoo Yun Suk, giving away free coffee to passersby. How would you like to drink coffee made by barista Son Ho Joon?

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A post shared by ??? SON HO JUN (@sonhojun_official) on Mar 21, 2018 at 1:47am PDT