Yes although it wasn’t from appearance they laugh in the same, loud way, and sometimes they have the same ideas.
Building a fire is an act of technical skill and technology, and fire in literature has also often been used as a symbol of knowledge. The building of a fire thus symbolizes life in the story, but also life through human knowledge, skill, and technology.
Sure, just post the questions.
"We are not going to do that yet." and "We will talk about that problem if and when it happens."