There seems to be a LOT of people in this industry that lack MANNERS so let's review:
Stop leaving all your trash scattered around on sets, TA does not mean trash assist.
Please and thank you are words that exist. Use them.
If you're at an industry event, you see someone you know, and they're with their partner, you introduce yourself to BOTH parties, not just the person you know.
INTRODUCE YOURSELF BY SHAKING HANDS AND PUTTING YOUR PHONE DOWN.
If you are male talent, please be a gentleman and offer to help the female talent with her bags if you're available, standing and staring at her while she struggles to pull a 50 lb bag out of a car is wild.
This is the hill I will die on, manners maketh man.