Leave a sweetheart candy in someone's pocket
Put a love note in someone's lunch.
Have kids decorate post its and put them in
Dad's car for him to find.
Make a handmade Valentine for your child.
Play love songs.
Eat red foods.
Say I Love You in Different Languages:
German: Ich Liebe Dich
Spanish: Te quiero
Smurf: I smurf you