Button Pressing

Thanks But how do I add multiple buttons to different pins how would I write that?

#include <Keyboard.h>
void setup() {
  // make pin 2 an input and turn on the 
  // pullup resistor so it goes high unless
  // connected to ground:
  pinMode(2, INPUT_PULLUP);
  Keyboard.begin();
}

void loop() {
  //if the button is pressed
  if(digitalRead(2)==LOW)  {
    //Send the message
    Keyboard.print("Hello!");
    delay(1500);
  }
}