He joked about packing carrying 30 pieces of underwear in his luggage while filming overseas.
He created fake captions for photographs shown to his supporters at his fan meet, then cheekily apologised for lying.
He cried at the end when it was all over.
To the neutral observer of South Korean actor Kim Soo Hyun's first fan meet held here on Sunday night, he gave the impression of being entirely spontaneous - unlike many of his compatriots too well schooled in PR, reports The Straits Times.
If nothing else, the actor whose popularity in the region rose phenomenally on the back of the hit drama My Love From The Star gave his fans - especially the handful who travelled across the continent - their money's worth of His Playful Kim Soo Hyun-ness.
In fact, it was the dapper-suited Kim who urged fans to lighten up at the start of the two-hour fan meet.
He said: "I feel like I'm in a school seeing you guys sitting there, with your expressions looking a little too serious. You look like I'm going to teach you something. I don't want it to be so serious."
Still, the gleeful atmosphere that the spontaneous Kim encouraged at the fan meet could not stop fans in the audience from tearing up upon seeing their idol in the flesh.
Nanyang Polytechnic student Nurul Atikah, 17, and her schoolmate were spotted with tears in their eyes as they were making their way out of the hall.
Ms Nurul, who paid $238 for a top-tier ticket, said: "I didn't expect him to be so sincere and nice in person. He even took the initiative to pick more fans to go on stage to present them with gifts. When he started crying on stage, I couldn't help but cry along with him."