Randomizing?

[Fysez]

So, I've been trying to work with making words/ect random.
I understand how to make numbers randomize, But it seems
I cannot figure out other things like words.

What I have an tried to do, Did not work:

PHP Code:

function onPlayerTouchsMe() {
this.chat1 = "Hey";
  this.chat2 = "Hi";
  this.chat3 = "How";
  this.chat4 = "Are";
  this.chat5 = "You";
  this.chat6 = "To";
  this.chat7 = "Day?";
  this.speech = this.chat(int(random(1,8)));
  this.chat = this.speech;
} 


Please help and teach me how I can fix this?