Gulliver the Traveler

Before you start to read Part IV of Gulliver's Travels, I would like you to think about Gulliver.  How would you describe him--what are his character traits?  How similar to or different from Hytholoday is he?  Do you think there is something about his personality that makes him susceptible to the influences of the people he meets, or would anyone (say, you or I) respond just as Gulliver does?