Aw man this is making feel bad because I'm a massive over-sharer lol
Red Flags: Rude to wait staff, not tipping, rude to customer service in general, very slobby and messy, apathetic, intense narcissism, endlessly bullying someone they deem as their "friend" and brushing it off as harmless teasing, not empathetic or sympathetic in any way, if they identify as too far to the left or right of the political spectrum, HUGE party person (like getting hammered nightly/drugs are super common/go to clubs all the time), too outgoing and "nice", negligent about others safety.
If a person can't run basic household items by the time they are 25, I'll probably steer clear unless there's a good reason. Being rich and momma or maid doing everything for you isn't a good reason; Being homeless or never owning said appliance is. Someone not having a job by that age (outside of good reason) also gives me a red flag because I question their ability to cooperate.
Also if they have dreams of ruling the world. Don't ask.
A very specific one of mine is in regards to mental illness. When someone says "well I have X illness and it doesn't effect me that way so you're wrong." Or in response to me saying how something is hard for me because of mental illness: "Well I have really bad depression/anxiety/etc. too, probably worse than yours, so if I can do this thing then you can do it." It's happened enough times, and I just wanna smack people when I hear it.
PASSIVE AGGRESSIVENESS. Please don't give the silent treatment, please actually talk about problems.
So many more but I'm boring you guys enough. These are some of the bigger ones.
Green Flags: Helpful to strangers, not afraid to speak up, good listener (to listen to my oversharing lol), patient and doesn't rush anyone, doesn't judge small quirks and flaws harshly, accepts gifts with grace, able to debate without getting angry and yelling (I love debates, it's kind of what I go to college for), being able to understand sarcasm, not yelling at me when I feel the need to touch a thing because the texture looks amazing (barring things that might hurt me or I'd get in trouble for, but I usually know not to touch those things), correcting when someone pronounces something the wrong way.
A big thing for me personally is someone asking if I've done a needed thing. If you ask me if I've eaten or if I've drank any water, I'll probs trust you more. Feels good that someone is looking out for me and cares enough about my wellbeing. Also because sometimes I forget to eat and they remind me to not die of starvation. 8D
TL;DR wow I have a lot of flags enjoy the novel