He revealed that, "I basically pretended I was nonchalant about it when I was actually very shy."
When the interviewer revealed that Hyeri had claimed she was indifferent during the shoot, Park Bo Gum retorted, "That's not true, I specifically remember her looking coy and embarrassed afterwards!"
In regards to the fact that the scene had initially been presented as a dream sequence, only to later be revealed to have occurred in real life, Park Bo Gum stated, "I actually didn't know myself. I thought it was a dream sequence and didn't even realize that it occurred in reality when we filmed the next scene."
You can relive the moment in the clip above!