Have you ever wondered how acceptable it is to hug or touch someone? While it may sound safe to avoid all physical contact so as not to offend any one, the lack of touching might imply cold attitudes or indifference in interpersonal relationships.

        So, what should we do? The simple answer is to thoroughly learn unique cultural norms for physical contact. In nonverbal communication terminology (术语), physical contact and the study of touching are generally referred to as haptics.

        Haptics in communication often suggest the level of intimacy. They are usually classified into two groups: high-contact and low-contact.

        Asia and quite surprisingly the United States, Canada and Britain belong to low-contact cultures. People from the rest of the world, such as Latin America, are considered to be in high-contact cultures, where they tend to expect touching in social interactions and feel more comfortable with physical closeness. Despite the classification, there are more complex factors such as relational closeness, gender, age, and context that can affect how someone views physical contact.

       One common French custom of greetings is cheek-kissing, but it is mostly restricted to friends, close acquaintances and family members. While cheek-kissing for Latin Americans is also a universal greeting form, it does not require such a high degree of relational closeness. However, gender matters more for them because cheek-kissing often only happens between women or a man and a woman but not two men.

        In contrast, in certain Arabian, African, and Asian countries, men can publicly hold hands or show physical affection as signs of brotherhood or friendship while these behaviors may suggest a romantic relationship in other parts of the world. Although men’s touching is more normal in these cultures, physical contact between persons of opposite sexes who are not family members is negatively perceived in Arabic countries.

        These factors could definitely affect the degree to which someone is comfortable with tactile (触觉的) communication and physical intimacy. Therefore, if you are someone who loves to show physical affection, you should not be afraid to show it or drastically change your behaviors—just ask for consent beforehand!

解析：A。根据题干中的Arabian countries可定位至原文第六段第一句。该句提到，在某些阿拉伯、非洲和亚洲国家，在公共场合男性可以握手或展示肢体上的亲密（physical affection），作为兄弟情谊或友谊的（brotherhood or friendship）象征。A项与此内容相符，其中friendship和physical affection原词复现，in public对应文章中的publicly，故A项为正确答案。

错项排除：B项利用第六段第一句中的romantic relationship进行干扰，但Non-traditional和unacceptable在文章中无依据，故排除。第六段第二句中说到，在阿拉伯国家，非家庭成员的异性之间（persons of opposite sexes who are not family members）的身体接触会被认为是不好的（negatively perceived），说的是非家庭成员的异性，并不是unfamiliar people，故C项排除。D项利用第三段出现的gender和age进行干扰，但文中是说还有一些更复杂的因素，比如关系亲密度、性别、年龄和背景，可以影响人们对身体接触的看法，并不是说不同的年龄和性别的人用不同的方式表达感情，故D项排除。