When writing a birthday card for your best friend, its important to make them feel unique, appreciated, and loved. Here are some ideas for what to write:

• Start with a greeting: Keep it simple and start with "Happy birthday!" or "Wishing you a happy birthday!"

• Express your best wishes: This section should include your key birthday message as well as reflections on your friendship, thoughts about this person, or hopes for their future.

• Make it personal: Incorporate inside jokes, memories, or references to things youve shared together to make the message more personal.

• Add a closing message: You can end the card with a suggestion to spend time together soon or mention a gift you got them or are sending them in the mail.

Here are some examples of birthday messages for your best friend:

• "Happy birthday to my partner-in-crime, my voice of reason, my confidant, my comic relief, and the BEST best friend I could ask for."

• "Wishing you a birthday blessed with love, laughter, and of course, good food."

• "Thank you for always being a friend I can count on. Happy birthday!"

• "From phone calls over coffee to crazy nights out, our friendship makes life better in so many wonderful ways!"

• "Youre my favorite person to laugh with, cry with, and everything in between. Happy birthday!"

Remember, the best message for a friends birthday is one that reflects your unique relationship with them. Make sure it comes from the heart and shows how much you appreciate and value their friendship.