Apparently it's traditionally a day where girls give chocolate to boys they like - usually handmade - but it's not sort of a day where you give chocolate to your friends as well as someone you like romantically?

At least, that's what I've been able to gather! In Japan, where apparently the girls give the boys chocolate on Valentines' day, the boys give something white back to them on White day, which is sometime after Valentines' day!

It's sort of fun sounding, don't you think?