The posts I have read about first letters can be separated into two camps:
- The CV-style letter applying for the position of your penpal - the "I am ..." and "I have..." and a thousand more "I" - and more or less the same first letter sent to everybody.
- The personal touch where "I" is not used in the first sentence of the missive, and the universe does not revolve around the writer of the letter. Each first letter written is different.
I know which I'd prefer, but there can be great first letters via either style.
February is a month of letters, international correspondence writing month, a handwritten letter every day. Many participants only see the letter as a one-off, so receiving a CV-style letter may well be a disappointment. The personal touch may persuade the recipient to continue with letter writing throughout the year, whether with that sender or with others.