-Say please when asking
-Say thank you when receiving.
-Say excuse me when interrupting or passing by.
-Say sorry when you’re wrong.
-Greet people politely.
-Listen without interrupting.
-Respect personal space.
-Use a calm, respectful tone.
-Be punctual or inform if you’ll be late.
-Clean up after yourself.
-Avoid using your phone when someone is talking to you.
-Knock before entering.
-Cover your mouth when coughing or sneezing.
-Be honest and kind.
-Treat everyone with respect, regardless of status
"Can I call you"? is so attractive
But no, please you can't call me because five months from now we're gonna be strangers and I'd have messed up my sleep cycle for nothing.
Enjoy your night, respectfully.