Since she was eight years old, Sara has never lived in any country for more than three consecutive years. It is constant moving for her and her ambassador parents. She studied at many international schools, from London to Australia, and she speaks five languages: Italian, French, African, English, and now Spanish. Sara just moved to Salamanca, and in a few minutes, we’ll get to know each other better over a welcome lunch our host-family has prepared. My palms are sweaty and my middle finger wrestles my index under the table, imploring the universe that this girl is likable. After all, we’ll be housemates. Jose Maria, our host father, offers me…