South Korean actress-host Song Ji Hyo is an energetic person.
Waltzing into a conference room at a hotel on Thursday afternoon, the 32-year-old is bright-eyed and bushy- tailed, despite touching down in Singapore from Seoul just hours ago.
And she is game for media interviews, with the same can-do spirit she displays in the face of daunting challenges on popular variety show Running Man, which she co-hosts regularly.
Right now, her mission is to promote her latest Korean drama Emergency Couple.
So eager is she to do it that, at one point in the half-hour interview when her co-star Choi Jin Hyuk is at a loss for words, she jumps in to answer for him.
Asked to recall a mischievous moment on the set, Choi, 28, draws a blank. At this, unflappable Song sails in like a damsel in shining armour to save the day.
She says: "There was a particular scene that his character has to show aegyo. Jin Hyuk could do it so easily because he has that mischievous side." Aegyo is a Korean term that means acting cute.
Choi plays headstrong Oh Chang Min in the series currently airing on cable's Channel M, while Song plays his feisty love interest Oh Jin Hee. The two are a squabbling divorced couple, whose paths cross years after they split when they become medical interns at a hospital emergency room.
Did acting in the show give them any insights into how to maintain a romantic relationship?
Song cheekily replies that the secret is in "skinship", a common Korean term for "physical touch". She covers her mouth and giggles like a schoolgirl at the word.
Choi, meanwhile, states seriously that one should not use harsh words during a heated argument.
Perhaps, four years on variety show Running Man has honed her ability to ad-lib and think on her feet. The show has its share of unscripted moments as the seven hosts and their guests aim to outwit, outplay and outlast one another in a series of tasks.
The varying tasks on each week's episodes are meant to test one's wit and physical ability, ranging from obstacle courses to undercover missions. Sometimes, hosts are scattered in deserted areas and made to sign autographs.