What is the odd mannerism young Pip notices about convict in chapter 5 of Great Expectations?

The odd mannerism that young Pip notices about the convict in Chapter 5 of *Great Expectations* is his habit of constantly licking his lips. This is described as a "dry, white, cracked, and distended lip," which he frequently "licked into a state of polish."

This act, while seemingly insignificant, contributes to the unsettling and menacing atmosphere surrounding the convict. It suggests a nervous or anxious demeanor, possibly fueled by his fear of being caught or his desperation for food.

This mannerism is further emphasized by Pip's description of the convict's "dark eyes, that looked as if they had been kept open with skewers." This emphasizes the character's unnaturally intense gaze, adding to the discomfort and apprehension Pip feels in his presence.