[填空题]Unlike other countries where it is common to see two women or two men holding hands, such behavior is (26) in Western countries. Affection between same sex (27) is perceived as part of the gay and lesbian lifestyle and not part of (28) America. However, it is common to see men and women holding hands, kissing and hugging in public places. In general, Americans are (29) ones they know and trust. In fact, there are a growing number of books in the so-called "self-help" sections of bookstores that (30) the topic of touching. It appears that many Americans now want to become more attuned (熟悉的) to the topic of physical contact.
A good rule of thumb to follow is avoiding touching people one does not know. Because some visitors come from (31) countries, it is common for them to shove and push when (32) . This is the behavior necessary for (33) , but in the US shoving and pushing is a precarious (危险的)