Grade 1 Parting

Overheard as I was getting to the station after work today.  Two little girls, looking about grade 1.  Their respective parents didn't say anything while the girls chatted.  I didn't get it all - they were not quite waist-high, with hats on - but here are the perks.

Girl 1 (R): I don't know which one we get out at.
Girl 2 (L): Is it Central?
R: It might be.  Or it might be at City and Roma St Station.
L: Oh.
R: Which platform do you go to?
L: Platform 4.
R: Oh.  We got to platform 1.
L: Oh, okay. ... Bye, R!
R [calling out]: Bye, L!  ... I'll miss you!!
R's mum [gently]: Don't call out so loudly, R.
R: But I just wanted to say goodbye.  I don't get to see her until tomorrow.

Made me smile.