You’re standing in line at the grocery store and you see someone cute. You’d like to strike up a conversation without it being awkward...but that feels kinda nerve-wracking, right? Or maybe you’re standing around at a party and see someone you’d like to get to know, and want to approach them in a way that doesn’t feel uncomfortable. That probably feels a little scary, too.The good news is that with a few easy tricks, you can improve your communication skills and feel confident approaching anyone.According to years of psychological research, several principles can help make striking up conversations with strangers easier. The great thing is that they all work best when approached in a casual, effortless way.1. Comment on the environmentLet’s say you’re at a party in someone’s living room. You can comment on physical objects: “Gee, this guy sure has a lot of books.” Or maybe you’re at a party where everyone brought food: “The food smells great. What are you grabbing first?” You can also comment on people’s behavior: “Is it me, or is everyone really well dressed tonight?”This works because of the Joint Attention Effect, which says that when two people pay attention to the same thing at the same time, they create a common point of reference. This shared focus can immediately make people feel closer, even in social situations.2. Make a playful commentPeople will usually respond when you make a playful or unexpected comment, as long as it isn’t threatening. For example, if the person you want to talk to is holding a cocktail, you might joke, “That drink looks serious.” If you’re stuck in a long line: “Do you know why we’re here? I almost forgot why we’re in line—it’s been so long.” Or if you’re at a child’s birthday party and spot another parent you’d like to talk to: “Be honest, how tired of Little Caesars’ pizza are you?”This works because of the Benign Violations Theory, which suggests that when someone violates a social norm in a non-threatening way, it makes people laugh and activates bonding mechanisms. It signals to your new friend that you’re playful and friendly, and when they laugh at your joke, it shows that you share similar values.3. Ask their opinionAnother effortless way to engage someone you don’t know is to ask their opinion. For example, if you’re in the produce section at the supermarket, you might ask, “Do these peaches look good to you?” Or if you’re at a party and bring up a pop culture moment most people watched: “So, was Bad Bunny great at the Super Bowl, or is he overrated?”This works because of what’s known as Cognitive Ease: people are more likely to respond to questions that are easy to process. Asking someone for their subjective opinion is non-threatening, and it’s easy for them to come up with an answer that makes them feel comfortable. Plus, if social media has taught us anything, it’s that everyone loves to share their opinions.Next step: Pivot and ask questionsGiven that all of these strategies are psychologically designed to elicit a response, even from someone you’ve never met, you have a strong chance of sparking a conversation. The key is to widen the exchange once you get that response by asking two more questions. In fact, a Harvard University study found that one of the easiest ways to be likable is to start a conversation with a question and then follow up with two more.“We identify a robust and consistent relationship between question-asking and liking,” the study's authors wrote. “People who ask more questions, particularly follow-up questions, are better liked by their conversation partners.”These three psychological rules show that it doesn’t take a Herculean effort to coax a stranger into having a conversation. All you have to do is make an effortless invitation by tapping into the environment you share with them, make a playful joke, or ask their opinion. Then ask a few questions, listen, and there’s a good chance you’ve made a new friend.