To be nonchalant, it’s all about staying relaxed and effortless. Don’t rush to react or show too much emotion—keep things light and easygoing. When something happens, just take it in stride like it’s no big deal, even if inside you might feel a little differently. Confidence without trying too hard is key. Listen more than you speak, and when you do speak, keep your tone casual and calm. Let things flow naturally and don’t force any energy. Remember, being nonchalant isn’t about being indifferent or cold—it’s about having a cool, laid-back attitude that says you’ve got everything under control without breaking a sweat.