Write an informal personal letter to a friend down his invitation for a birthday party.

You write it and someone here will check it over for you.

http://depts.gallaudet.edu/englishworks/writing/letter/invitations.html

http://www.abcteach.com/Writing/invitation.htm

Dear [Friend's Name],

I hope this letter finds you in high spirits and good health. I was delighted to receive your invitation for your upcoming birthday party. I want you to know that I wouldn't miss it for anything in the world!

Firstly, I must say that your choice of venue sounds amazing. [Insert details about the venue and your excitement about it]. It is going to be an epic celebration that I am eagerly looking forward to.

When it comes to getting a gift for you, I have been pondering over some ideas. [Optional: insert details about your gift ideas]. However, I would like to know if there is anything specific you would like or if there is something you have been wanting for a while now. Please do let me know so that I can make your birthday extra special.

In terms of transportation to the venue, I will make sure to arrange my own ride. [Optional: Specify if you need any directions to the venue or if you will use a GPS]. I always prefer to plan everything ahead and make sure that I reach on time, especially for such a special occasion.

Lastly, I must applaud you for being such an amazing friend and for always throwing the best parties! Your birthdays are always memorable, and I'm sure this one will be no exception. I cannot wait to celebrate another year of your life and create unforgettable memories together.

Once again, thank you for inviting me to your party. I truly value our friendship, and I am grateful to have you in my life. Please let me know if there is anything else you need help with or if you have any specific arrangements for the party.

Wishing you an incredible birthday filled with joy, laughter, and all the things that bring you happiness.

Take care and see you soon!

Warmest regards,
[Your Name]