You . . . aren't going to understand most of the live entertainment in the park.
But, hey, that's OK! The Frozen Sing-Along Celebration will likely be the roughest for English-speakers, but Eye of the Storm: Captain Jack's Stunt Spectacular, despite its indecipherable dialogue, has enough cool tricks and stunts that you'll walk away wowed. If the language barrier has really got you down, opt for Tarzan: Call of the Jungle instead; the entire acrobatics-packed show is done with minimal dialogue.