[When she finally calms down from laughing, she'll look at him with a smile appearing on her lips.]

Don't worry, I was only kidding. [Looking striaght at him this time the smile still in place.] You really need to learn how to lighten up a bit, Leon. We aren't in Radiant Gardens now, so you should learn how to relax and lighten up while you still have the chance to.

[Only Aerith can turn joking time to lecturing time in only mere seconds.]