What does "pompous" imply about a person's demeanor?

The term "pompous" describes a person's demeanor as being excessively self-important or arrogant, particularly in how they speak or behave. When someone is pompous, they often exhibit an inflated sense of their own significance or intelligence, which can be perceived as grandstanding or showiness. This self-importance tends to manifest in a manner that may feel pretentious or condescending to others, suggesting that the individual places themselves on a higher pedestal than those around them.

The other choices convey different traits that do not align with the meaning of "pompous." Humble and modest behavior indicates a lack of arrogance, which is the opposite of being pompous. A casual and relaxed demeanor suggests a laid-back attitude, whereas a pompous person is typically more stiff and self-absorbed. Lastly, a friendly and open demeanor involves being welcoming and approachable, contrasting starkly with the aloofness that often accompanies a pompous attitude.