Peer-to-peer selling is all about trust and easy exchanges, which you can hint at with combos like 🛒🤝💬 for smooth deals or 🔄💸👥 when money changes hands between friends. Use 📦🏠👥 to suggest home deliveries or 💻📦👤 for online transactions. These stacks fit well in marketplace chats, negotiation threads, or quick updates on sales progress.