take a hint

• I kept looking at my watch , but he just continued talking : he can ' t take a hint
  我不住地看手表，他却一个劲儿地讲个没完，他不能领会暗示。
• The greatest thing in family life is to take a hint when a hint is intended - and not to take a hint when a hint is not intended
  家庭生活中最重要的不仅是成员之间的心领神会，还需要心有灵犀一点通。