How can someone be annoying just by looking at them?

Someone can be perceived as annoying by their facial expressions, body language, or overall demeanor. For instance, constant smirking or rolling of the eyes can convey disdain or condescension, irritating those around them. Additionally, a lack of engagement or an overly indifferent posture might come off as disrespectful, leading others to find them bothersome. Ultimately, it's often about the judgments we make based on non-verbal cues rather than their actual behavior.