I'll try to Clearify what Lenny's saying. ok say we have a NPC (non player Character) Let's call him Squall, when our hero talks to him he'll say "FF8 is Better then FF7" if you want him to say something different the next time what you have to do is this,

Make a New Event, Give it a Squall Event Graphic, Trigger Condition- Touched by Hero, Event Layer- Same as Hero

Click under Event Commands and make a message: "FF8 is Better then FF7"
then go to event commands again, Find "Switch Operations" click on that.
look at where it has that white bar and ... at the end. click on the ...

Where it says Name: Type in something that goes with our Hero's fight with squall. Like "I'm Better!" or something.

Click OK, and OK again.

It should say this under Event Commands now

Message: FF8 is Better Than FF7!
Switch Operation: [0001:I'm Better] ON

if it does click on NEW PAGE at the top of the Window.
on page 2 give it the same Graphic as before.

under Preconditions click one of the white box's that have Switch
next to them. in the bar it should say 0001: I'm Better

if so great! now under event commands in Page two make another message that says "Ow, geez Cloud, Didn't have to Punch me"

now try it, talk to him once, He'll dis FF7 you'll punch his face in
and he'll be sorry. Hope This Helped.

Remember Switchs are very inportant in EVERY game so learn how to use
em, and try it out.

Peace
-Ninja