When scheduling a meeting, instead of saying:
What works best for you?
Can you do X at y day?
If you make a mistake that's called out by another colleague, instead of saying:
I'm sorry my bad, totally missed it.
Nice catch! Updated file attached. Thank you so much for letting me know.
When you're trying to communicate a concept, instead of saying:
Hopefully that makes sense.
Let me know if you have any questions.
If you're not able to respond to an email for a long time, instead of saying:
Sorry for the delay.
Thanks for your patience.