Concept:The idiom "pull someone's leg" means to tease or joke with them in a playful way, not to be serious.Explanation:The phrase is used when someone says something false or exaggerated as a lighthearted trick.For example: "He said he won the lottery, but he was just pulling my leg."This matches "joke with them" (Option A).The other options are incorrect: praising, annoying, or criticizing are not the intended meanings.Answer:Option A: Joke with them