[arch-general] New Using AUR

I had two questions about using the AUR. I have never done it before and read of the How-To on the Wiki but could someone please answer the following two questions I have: 1. If I build a tarball on 'PC1' downloaded from AUR with the 'makepkg -s' command, can I then transfer the created tarball to 'PC2' and install it even though PC2 didn't have any of the required packages used to create the tarball from the AUR? 2. Once a package is installed from the AUR, when I do a system upgrade via Pacman, will outdated packages I installed via AUR get automatically upgraded or do I have to do all my AUR packages manually?