The cosmopolite may seem charming at first, with his tales of different places. But as the story progresses, we may find that he has insecurities or is using his cosmopolitan image as a shield. The other characters, whether they are customers or the cafe owner, might represent different aspects of society, from the cynical to the curious, and their reactions to the cosmopolite can tell us a lot about their own personalities as well as the overall message of the story.
There might be other characters in the story who are local or more ordinary in comparison. They could be skeptical of the cosmopolite's grand claims, which could lead to interesting interactions. For example, they may question his so - called worldly experiences or the way he presents himself. This contrast between the main character and the others can drive the plot forward as they challenge each other's views and identities.
The main character, the cosmopolite, is likely self - assured and claims to be well - traveled and worldly. He probably has a lot of stories to tell, or at least he thinks he does.