haha well it's valentines day, you can get your answer but now asking every single person what they did today
Some people stay at home like any other normal day. Some people try to get a girl at this point. Some people become sad as they watch shows with romantic parts. Some people commit suicide.
Grab your cheek with your index finger and thumb, now pull it and push it against your mouth listen to the sound There is your answer
If you are a female, treat yourself to a manicure and pedicure and if you are male, you probably don't care anyway (not as sensitive as females)