1 : a noisy attention-getting demonstration or talk
2 : flamboyant, exaggerated, or sensational promotion or publicity
3 : excited commotion
The bard was at the center of the ballyhoo, talking up all the wonders the village would gain from helping the adventurerers.
So you know those scenes where the hero of the story gives a pep talk to re-inspire followers into doubling down on whatever plan they were starting to back away from out of fear. This isn’t that. This is more like when the bubbly charasmatic con-man gets everyone excited for the riches they’ll get if they follow him. Or the scene a carnival makes when their caravan first rolls into town. Or pretty much any day until they leave. It’s loud, it’s dramatic, and there’s probably some showmanship involved.