Its a nice feeling when you know that someone likes you, someone thinks about you, someone needs you;but it feels much better when you know that someone never ever forgets your birthday."HAPPY BIRTHDAY".
1 smile = 1 friendship
1 friendship = 1 love
1 love = 1 proposal
1 proposal = 1 marriage
And 1 marriage = THOUSANDS of problem.
so better think before you smile.