- A meaningful title
- Greet and introduce yourself
Talking a bit is not harmful. Just one sentence as I mentioned above - "Have a great job", "Have a good weekend," etc., will be very useful when it comes to your account... It will make your post well received. It would also be okay if you mentioned a bit of weather comment.
- Do not go around
- Respect and humility
- Punctuation and grammar
- Read and edit