Absurdly Ineffective Barricade: Berk had tried studding every surface they could under the assumption that it would protect their property from dragon theft. It didn't work.
Big "SHUT UP!": Done by Stoick and Toothless during the meeting.
Family Disunion: Hiccup returns to his tribe for the first time in over a year. He, Toothless, and their family members are less than enthusiastic...especially once they see how the Berkians give Hiccup and Toothless dirty looks. Likewise, Stoick still doesn't understand why Hiccup feels more comfortable around the Madrigals than with the other Vikings.
The Magnificent: By introducing the Madrigals, Hiccup gives each of them one of these in order to endear them to the Vikings: Luisa the Mountanous, Isabela the Wild, Camilo the Chaotic and Mirabel the Miraculous.
Papa Wolf: Stoick, after seeing how the crowd's jeering is hurting Mirabel's feelings, yells at them all to shut up and berates them for insulting the very people who've come to help them. True, it was mostly because Stoick's still trying to get on Hiccup's good side, but still.
Powder Keg Crowd: The tribe at first is an uproar that Hiccup and Toothless return, laugh hysterically that the thought of him being their salvation, to hooping and hollering in his favor when Hiccup pacifies Toothless in front of them.