# Connect with EthCC 4 attendees    👋 EthCC attendee, Welcome to [TrustCommmunity](https://www.trustcommunity.io)! During the upcoming EthCC 4 in Paris, you will be able to connect with other attendees and **swap conference tokens on zkRollup** for fun and to earn 🤑 rewards. The total prize pool is **31,000 HEZ** (≈100K USD) and the most active attendees who predict which tokens will be the most valuable will earn the most!   ✅ How can I take part in this activity? It's easy: - You must have the **MetaMask app** or any **WalletConnect** compatible Ethereum wallet installed on your smartphone. - Then activate your web app with a unique and non-reusable **invitation URL** (open it from your smartphone): [http://trustcommunity.io/?123456789](http://trustcommunity.io/?123456789) - Just before the official start of the conference, you will receive the conference tokens 🎁 in your TrustCommunity app to start swapping with others.   You will receive rewards as you connect with new members and for the final reward based on the ranking of token value, you will need to make at least two connections during the conference. If you experience any problems with onboarding, our team will help you on-site in Paris. Some users might experience issues with their phone camera permissions. If this happens to you, please look for some Hermez team members and they'll help connect. Complete information and instructions are available at our [Playbook](https://playbook.trustcommunity.io). We hope the TrustCommunity app connects you with other EthCC attendees, and you will have a great time! Happy Swapping!