oral versus written style

Here are some ways that oral style differs from written style:
The average sentence is shorter in oral communication.
You use fewer different words when you speak.
You also use a larger number of short words such as "it" and "the"in fact,fifty simple words constitute almost of your speaking vocabulary.
You refer to to people more often with words like"i,you,me,our and us"
You  use more qualifying words such as "many,a lot and most"
Your language choices are more informal and you use more contractions.
             
  WRITTEN COMMUNICATION                      ORAL COMMUNICATION