Will this work?
function room_FirstLoad()
{
if(Random(1)== 0)
{
Display("words");
}
else{
Display("other words");
}
}
Just try it?
FirstLoad is called only at first load. So what you did will cause the player to say either "words" or "other words" the FIRST TIME he enters the room. Not the subsequent times.
If a 50/50 chance was your intention, then yes, you used Random() correctly.