Hyoyeon revealed she feels most awkward with fellow Girls' Generation member Taeyeon.

Taeyeon featured as a guest on the October 2nd episode of Hyoyeon's YouTube show 'Hyo's Level Up', and they opened up about their friendship as Girls' Generation members while enjoying a meal of cold soybean noodle soup. Hyoyeon expressed her excitement, saying, "It feels like we're testing how much we know about each other. There aren't many opportunities to confirm what we know about each other, even if we already have some knowledge."

Taeyeon explained, "By nature, we don't show our feelings much. We tend to just accept things as they are. Hyoyeon is the type to take care of things quietly." Hyoyeon then mentioned, "Tiffany was worried about me filming with Taeyeon, wondering if maybe our conversation might go off track."

She later recalled, "When I appeared on 'Winning Ticket,' I said the member I was most awkward with is Taeyeon. Even now, when someone asks if there's a member I'm awkward with, Taeyeon comes to mind because we didn't talk much. Is it because our personalities are so different?"

Watch 'Hyo's Level Up' featuring Taeyeon as a guest above, and make sure to turn on the English captions.

SEE ALSO: Girls' Generation thought this title track was going to flop but defied expectations