1.) While doing any type of ghusl, if i talk with someone or speak anything, my ghusl will become void?

2) While doing ghusl, after washing the head, the neck is to be washed and then the right side of the body and then remaining left. So traps are included in neck, or remaining body parts?

by

1- No.
2- You need to wash the head and neck, with a little bit of the chest, shoulders and back, then get out of the shower, then wash the body, with little bit of the neck.
It is preferred that you wash the right side of the body first, then the left side.