When they're mad/avoiding each other, they'll stay a good few distance away from each other during the end of their collaboration stage.

i.e. smtown tokyo and jakarta

When they're happy, they'll stand very close to each other during the end of their collaboration stage.

i.e. smtown taiwan and seoul

When they're mad/avoiding each other, Taeyeon will refuse to interact with Sehun at the beginning of Hope performance.

i.e. smtown tokyo and jakarta

When they're happy with eah other, Taeyeon will find any ways possible to interact with Sehun at the beginning of Hope performance.

i.e. Smtown seoul

These two needs to makeup and be happy again. LOL.