She takes on a disguise as Beroe, Semele's nurse, to enact her jealous hatred of Semele, made even stronger when she sees Semele's beauty. Planting seeds of doubt in Semele's mind, Juno (as Beroe) suggests that Semele might have been fooled, falsely wooed by an imposter. Semele entreats Beroe to help reveal the truth.
In this scenario, she adopts the persona of Beroe, Semele's nurse, to express her deep-seated animosity towards Semele, which is heightened by her perception of Semele's exceptional beauty. By casting doubt on Semele's perceptions, Juno (as Beroe) suggests that Semele might have been deceived, seduced by an imposter. Semele asks Beroe to help uncover the truth behind this situation.