Hi John. How’s it going, man?
Hi[,] John. How’s it going, man?
Missing comma with a form of direct address:
Use commas with forms of direct address, as in “Thank you[,] John[,] for representing us at the meeting. You did a great job[,] fella.”
Compare “Let’s eat Grandma” with “Let’s eat[,] Grandma.”
Back to Weekly Tip
See Error Checklist for a compilation of 75 common writing errors.
For more exercises in identifying common errors,
take the M.B.A. exam and the Punctuation and Grammar Challenges.