Americans do not generally stand very close to each other when conversing, keeping about arm ’ s length apart. However, they may spontaneously touch one another on the arm or shoulder during conversation. It is common for couples to hold hands or show affection in public. When sitting, both men and women are often casual when circumstances allow, and they may prop their feet up on chairs or place the ankle of one leg on the knee of the other. In more formal settings, however, it is often considered inappropriate to slouch or be too casual in demeanor.