A silence can be deafening, so when silence strikes when you are having a conversation, this may be a sign that you should move on. But it doesn’t mean that you have to jump into a random topic just to fill the silence, it would be even more awkward. To be safe, talk about the event itself or make a comment about the program or the party or the host or even the performer. Just say, you know what I like the motif of this event, it is amazing, I guess the host prepared so much for this event. And the live band that they invited is amazing; I will be their number 1 fan now. This event is undeniably so great!