This holiday is now primarily associated with the lovers who exchange mutual notisi-notisi in the form of "Valentines". Modern Valentine symbols include including a heart-shaped card and a picture of a cupido (UK: cupid) wings. Start of the 19th century, the tradition of love of writing notisi production started mass cards. The Greeting Card Association (U.S. Greeting Card Association) estimates that worldwide approximately one billion valentine cards are sent each year. This makes this holiday is the second biggest holiday after Christmas in which greeting cards sent. This same association also estimates that the women who purchased approximately 85% of all valentine cards.
In the United States began in the second half of the 20th century, the tradition and expanded the card exchange includes providing all kinds of gifts, usually by men to women. Ordinary gifts of roses and chocolates. Beginning in the 1980s, the diamond industry began to promote Valentine's Day as an opportunity to give jewelry.
A date on Valentine's Day is often thought that dating couples were involved in a serious relationship. Actually it is a day valentine romance, not just the girlfriend or boyfriend, Valentine is the biggest day in terms of romance and Valentine does not mean other than not feeling the love.
In the United States this holiday and is associated with a general greeting platonic love "Happy Valentine's", which could be uttered by men to their female friends, or, to male friends and boyfriends female friend to a lady friend. While most people think of Valentine's Day as the most difficult moment, full of pressure and superficial because the longer the period of a love relationship, the greater the pressure they are natural partners because of depletion of original ideas.