Ответ:

Один из возможных вариантов:

  1. I am usually sociable and sometimes quiet.
  2. My best friend is often generous. He / She is hardly ever mean.
  3. My neighbour is easy-going.
  4. My maths teacher is hardly ever stressed. He / She is usually relaxed.

Это пример ответа: при описании характера возможны другие подходящие прилагательные.