Answer:
Birthday
The only sound is from the kids bouncing in the bounce house, the adults sitting at tables, gossiping, and usual nature sounds, birds chirping, leaves rustling, wind blowing. The party seems almost lonely and quiet, but the mood at the party is filled with pure joy and happiness. The parents talk about their jobs and funny stories that happened to them over the past week. The children however, are much more lively, trying to push each other down in the bounce house, and falling over, not being able to get back up. The sounds of laughing and giggling from all participants make the party seem not as lonely.