WhatsApp Web emojis signal you're multitasking across devices. Use 💻💬📡 when chatting on your laptop but staying connected via phone, or 💬📱🔗 when linking your mobile and desktop seamlessly. Drop 💻🔔📱 to show notifications pinging from both screens. These combos fit tech updates, work-from-home chats, or quick heads-ups about being online. They’re subtle but clear about where the conversation’s happening.