We will not be able to understand each other.If there is no communication.Communicate with multiple formats.With the use of gesture.The burn.To read.But the popular communication and understanding each other is the use of language.
We can not understand each other if there is no communication , there are many ways to communicate with. Using gestures, writing , reading , but communication is used. And thus most easily understood language.
People will not be able to understand each other.If no communication.Communication has many forms.The use of gesture.Writing.Reading.But the communication used. And understand simple as possible is the use of language.