"there have been two struggling parties in this empire, under the names of Tramecksan and Slamecksan, from the high and low heels of their shoes, by which they distinguish themselves..."See in text(Part I - Chapter IV)
Gulliver is describing the two principal political parties in Great Britain—the Whigs, who tend to be liberal, and the Tories, who are generally conservative. The differences between them, Swift believed, were not significant, so in Lilliput, the parties are distinguished by the height of their heels.
"I then put myself in the most supplicating postures and spoke in the humblest accent..."See in text(Part III - Chapter I)
Gulliver shows that he does not mean harm by changing his posture to diminish his physical power. This posture convinces the people on the island to rescue him. The people of the floating island, rather than grabbing weapons, simply are won over by Gulliver’s gesture of peace.