Write an email to your friend thanking him/her for a birthday gift that he/she sent you on your birthday.
To : firstname.lastname@example.org
Subject : Thanking for the birthday gift.
Thank you so much for the gift that you have sent me in my birthday. I received a lot of gifts in my birthday. But your gift was the most special gift for me in my birthday. I became very happy when I saw the gift. I will always keep your gift carefully.
Please meet me soon whenever you get time. With best regards to you and your parents.