As Hubert Humphrey once said, "the greatest gift of life is friendship," what you choose as birthday messages for your friends should be a gift in kind — a gift of love.
Birthdays are the perfect time to show your friends you care about them — and you are there to celebrate their awesomeness with all your heart. Accordingly, birthday messages for friends should be, in so many words, a platonic love fest that recounts all the good times you've had with them, plus all the good times you will have together.
That's why I offer only one type of birthday messages for friends: the best type source
Happy birthday 
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