here you have it
void loop()
{
// set the cursor to column 0, line 1
// (note: line 1 is the second row, since counting begins with 0):
lcd.setCursor(0, 1);
buttonState = digitalRead(buttonPin);
if (buttonState == HIGH) {
Serial.println("not pressed");
lcd.print(1);
delay(10);
}
else {
Serial.println("PRESSED!");
lcd.print(2);
delay(10);
}