If you mouth the word "colorful" to someone, it looks like you are saying "I love you".
634
Wearing red increases attraction.
30
Men fall in love faster than women do.
32
Two in five people in the world marry their first love.
270
Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14
In Korea, if you do not receive any gift on Valentine's day then all the singles go to Korean restaurants and eat black noodles to celebrate (or mourn) their single status.
28
Couples' personalities converge over time to make partners more and more similar.
235
A Korean man called Lee Jin-gyu fell in love with his large, huggable pillow and married it.
29