Listen before responding
Ask what another delegate is trying to achieve and why. Restate their concern in your own words to check that you understood it.
Separate positions from interests
A position is what someone proposes. An interest is the need or priority behind it. Understanding the interest can reveal different ways to reach a shared outcome.
Offer something specific
Explain which part of a proposal you support, which part creates a concern and what change you suggest. A practical alternative moves the conversation forward.
Keep a record of agreement
Summarise what the group agrees on and what still needs work. Invite quieter delegates to contribute. Good negotiation makes room for different perspectives and responsible commitments.