How was Portia a clever person in merchant of Venice act 1

Act One scene two illustrates Portia's cleverness. Portia, the wealthy heiress, discusses her many suitors with her noblewoman Nerissa. She points out the faults that each of them has, often stereotyping each suitor according to the country from which he has arrived. Nerissa, a gentlewoman who works for Portia, asks her if she remembers a soldier who stayed at Belmont several years before. Portia recalls the man, and says, "Yes, yes, it was Bassanio" (1.2.97). Portia's servingman then arrives with news that four of her suitors are leaving, but another, the Prince of Morocco, has arrived.