The stage and seating placement is not that far apart,I think even from the stage you can still see the faces of people who are sitting.
HJH was a presenter so he probably appeared only when he presented and just stayed backstage the rest of the time,
but Girl's Days were winners,so there is probability they were in the seats when HJH presented.
We will have to wait for the recorded broadcast tomorrow but from looking at the photo gallery on Star News maybe the order was Girl's Day performance-> Girl's Day receiving award-> HJH presenting.
And from the gallery I saw other actors being partnered with beautiful actresses, but HJH was partnered with another man. maybe a Writer? thats just my speculation because he was presenting for TV/radio writer category.