Stick around?

You decide that maybe waiting around a bit wouldn't kill you. You look around a bit and sit on a nearby seat. Leaning back and resting your arms around, you begin to relax a bit. As you drift off in your constant daydreams, your ears catch on to the conversation a group of girls are having. Upon further inspection, you recognize their voices. They're none other than Kelly's group of friends.

Normally, you aren't the one to eavesdrop on conversations, but this one time you couldn't help yourself.

"...Yeah Kelly keeps forgetting her locker combination."

"Can you blame her? She barely uses it."

"Don't you know her code?"

"Yeah." the voice says, then giggling a bit. "I thought I wouldn't tell her this time. Maybe it'll teach her a lesson."

"Emily, you're such a bitch!" the other says, before the entire group laughs.

You roll your eyes as the high pitch laughing engulfs the entire room. You were about to leave to, until something interesting came up.

"What was her code again?" Tanya says. She's probably the one friend of Kelly that you talk to often.

"Um...I think it was 42-12-03-34." she then replies. "Why do you want to know?"

"Because you-"

You decide to move away from the conversation and resist to the urge to laugh. After all, it isn't everyday people go telling locker combinations out loud in public.

You can't figure out why, but you have a feeling that maybe the combination is going to be useful sometime soon.