The tango is a South American dance that is passionate and emotionally intense between two people . Our expression for today's program is : It takes two to tango ! So , let's do the tango … in an expression . Like the tango , some actions or activities take two people . You can't do them alone . Like a fight . Fighting with yourself , whether a verbal argument or a fist fight , would look really silly ! And doing the tango by yourself might look silly too . We also use this expression when two people or two parties are responsible for getting something done . For example , some reforms in the United States will need both parties to come together . After all , it takes two to tango . Sometimes we shorten this expression by leaving out the subject and say , “takes two to tango .” Here are more examples . We need to work together on this problem , or we will never find a solution . Like the saying goes , “it takes two to tango .’’ This project is too big for one person . I'll help you . Takes two to tango ! We have a similar expression . It also means that two people are involved in something . The expression “two can play at that game ” means what one person does , another can do too . We use this expression to involve ourselves in the action : We are going to do the same thing that someone else is doing . Let's say , someone plays a trick on you . They throw a balloon filled with water at you and you get soaked . You shout , “Two can play at that game !” And then you throw a water balloon at them ! Usually we use this in an “I will get you back ” kind of way . Here's an example . Look I know that you want the new job in the design department . So , I'm going to tell you something – something about Daryl . He wants the job too , doesn't he ? And he just invited the boss to a football game . Well , two can play at that game . I will invite the boss … to … karaoke night . I don't think the boss sings . I don't think that's a thing . But keep thinking . Now back to our first expression – it takes two to tango . Learning a language is difficult to do alone . After all , it takes two to tango !