Can you please help me find all the Prepositional Phrases in the paragraph?

On Christmas morning, we all sit around the living room waiting with baited breath for Santa Claus to arrive. Of course, we all know that it's just Dad inside a Santa suit, but we don't care because we all love his performance. First he bellows, "ho-ho-ho," so loud that it seems to practically blow off his beard. After his entrance, he walks around and asks each one of us if we've been good this year. Finally, he reaches under the tree and with gusto, gathers the packages to p out.