LinkedIn is one of the best places to start warm conversations—especially if you’ve done even a little homework. It doesn't matter if you're messaging someone from a shared group or reacting to a post they made. Always start with context: how you found them and why you’re reaching out. Keep your message short, friendly, and focused on them, not you. Ask a relevant question to spark the conversation, then share a quick win you've helped someone like them achieve. You should sound like a helpful peer vs a pushy seller.