请阅读下面短文，根据短文内容从每小题所给的 A、B、C、D 四个选项中选出最佳选项。
If you're traveling to the United States, you need to understand the common way to say hello—a handshake. Friends shake hands. Women, men and even children can shake hands.
Shaking hands seems simple,but there are some important things to remember. When you shake hands,you must look into the other person's eyes the whole time you're shaking hands.
Shake hands strongly. If you give a weak handshake, the other person might think that you're not
kind. He might also feel that you don't like him or you don't want to touch him. Shake hands with men and women the same way. If you shake hands with a very old person or a small child, be careful not to hurt them.
Some people don't know how long to keep shaking. The most common handshake should have three shakes and then you should let go. Don't worry if Americans shake hands a little longer.
Your handshake is like your smile. It's special to you. You need to find a comfortable strong handshake that shows what you are like. Because the handshake allows people to touch, the hand should be warm ，clean and dry.
●Warm: Put your hands into your pockets before you shake hands. This will warm them.
●Clean: If you know you're going to meet someone ，wash your hands so they'll be clean.
●Dry: Everyone gets nervous and your hands may get wet. It isn't a good feeling for the other
person. Again, put your hands into your pockets. This will dry them.
