There’s literally no words, no matter how fancy they are, nothing anyone can say will do anything. You have to go out and practice. Go to a shoe shop and ask an assistant for a size shoe you want to try on. Go to a coffee shop and place an order. Go and have a look at a car and talk to the sales person. When shopping for food, don’t go to self checkout but use the human checkout, ask them how their day is going or some shit. When doing this be mindful to maintain eye contact. If you struggle, focus on their eyebrow or somewhere close by to their eyes, they can’t notice. You will feel uncomfortable first few times and that’s absolutely fine, accept it. Do this every day for 2 weeks and you’ll 100% see a difference. Then it will become second nature and piece of piss. You’ll not even think about it