If you’re wondering why Malia Obama was in Medford Wednesday, it wasn’t to get a meatball sub at Bob’s. The daughter of President Obama and first lady Michelle Obama is touring colleges, and she took a stroll on the Tufts campus. We’re told her presence, while not exactly unnoticed, did not cause much of a commotion. According to Twitter, the Obamas’s eldest daughter — and her Secret Service detail — were also seen at Harvard Wednesday. (Both of Malia’s parents attended Harvard Law School.) Earlier this week, Malia was in Providence, where she took a look at Brown and afterward, according to the Providence Journal, dined at XO Cafe. In recent weeks, she’s also visited Yale and Princeton.