Hello there! Let's work out a good deal!
Hello! Let's do it! 🙂
I'm looking to cook a meal for everyone during the trip so I'm looking to make sure I have enough firewood to keep the fire going. 
That's fair! If you'd like, you can have all of the firewood! I'm looking to avoid passing out during this trip - keeping hydrated helps! What if I have the water and you get the firewood?
That works with me. I would like to get some extra food as well. Are you cool with me getting 2 packages of food and you taking 1?
Perhaps! How many people are you cooking for?
Probably 10 of us
Okay, that sounds fair to me, then. I will only have 5 people.
Ok. So I take firewood, you take water, and then 2 food for me and 1 for you.
That sounds perfect! Thank you for coming to a great agreement with me!