Read the following passage.
“We did it! We did it! We did it!” Mei boasted, slapping her hand against the table, scattering toast crumbs, knocking aside teaspoons and almost smearing the butter in her zeal.“Whoa!” her brother exclaimed, startled. “Well, congratulations!”Mei stood up and triumphantly strutted around the kitchen, transforming her walk around the breakfast table into a victory parade.Her brother laughed, surprised and amused. “Who are you, and what have you done with my sister, Mei?” he teased.
Based on the passage, what can you infer about the main character Mei?