Final answer:
The term for the distance within which a person feels uncomfortable when others approach too closely is 'Personal Space'. Cultural background significantly impacts what is considered appropriate personal space, and professional etiquette includes respecting the personal space and comfort levels of coworkers and adapting to practices like modified greetings during times like the COVID-19 pandemic.
Step-by-step explanation:
The distance within which a person feels uncomfortable allowing others to come closer unless they are invited to approach is known as Personal Space. This concept is closely related to proxemics, which is the study of how individuals use space to communicate and maintain their comfort levels. Cultural background greatly influences what is considered an appropriate personal space, and these norms can vary significantly from one society to another. For example, maintaining an arm's length of distance may be common in some cultures during face-to-face conversations, while others may be comfortable with standing closer.
In professional settings, it is important to pay attention to cues from co-workers, as standing too close may breach someone's personal space and make them uncomfortable. Conversely, standing too far away might give the impression of disinterest. With the advent of COVID-19, social practices like shaking hands have also adapted, and respecting each other's comfort levels regarding physical contact has become more prevalent. Alternatives to a firm handshake, like a small wave accompanied by eye contact and a smile, are sometimes more appropriate.