There are things you should not say:
Never comment or ask a woman about her age or weight.
Never comment on how many kids someone has (or doesn’t have.) The size, timing, composition, etc of someone else’s family is not your business to weigh in on. You never know who is struggling with loss or infertility, etc. And if someone announces they are expecting their seventh kid, the only correct response is “Congratulations” “How are you feeling?” etc. Just like you would if it was their first. Never ask someone how much weight they lost. If they’ve lost weight, just say “You look wonderful/amazing/ fantastic, etc.” And of course never comment on anyone having gained weight. Just say “You look wonderful.” And never never never ask someone how much money they earn or how much money they have, or how much they owe or paid for something, etc. People’s finances are personal, and are just not any of your business.
If you see a kid sitting alone, he or she might be your next best friend. Go say hi! Ask him/her to sit next to you / play on your team, etc. No need to worry about whether that person is “too cool” or “not cool enough,” they’re just a kid. Like you.
The biggest mistake I *never* made was in 1997. I was working two jobs: nurse and waitress. I was having an extremely difficult time in the nursing job. I struggled to understand it and made mistakes despite working long hard hours. My waitressing job was hard too, but it was fun! A great group of fun young people, we hung out and bonded. I was crushing hard on the bartender too! I decided to quit my nursing job and wait tables full time. (I had TWO college degrees at the time.) Not sure exactly what made me change my mind, but I didn’t do it. Instead I quit the restaurant (probably because I was heartbroken over the bartender!) and enrolled in graduate school. Kept my nursing job. There I met lifelong friends, and went on to be nursing director. That waitressing job was my escape hatch. The best I could imagine for myself was waiting tables full time! What a small SMALL world view. While I am VERY glad I didn’t quit the nursing job I hated, because that’s how I got you, I wish I had imagined a bigger, better option than waiting tables full time if I felt that I needed to quit nursing. Peace Corps, move to the city, SOMETHING brave and bold and exciting. All this is to say - widen your vision. There’s so much more to life than what is directly in front of you. Be bold. Be brave. I love you.