China didn't have Speed Dating organizers back in those days, I guess. I attended a Speed Dating event once. I wrote an article about my experience at the Speed Dating meet but forgotten where I published it. Will find it later.
That Chap Goh Meh night, girls were busy writing their Facebook user name, mobile number and age on a mandarin orange before throwing it into the lake. Hopefully, they used water proof marker pens. Heh. I always suspect the custom was invented by traders to sell unsold oranges.