Once you have received your Bitcoin cash, either from the exchange or by buying it from the exchange, you can use it any way you want, just like how you would spend any other altcoin for that matter. This split also saw many miners shifting from bitcoin to bitcoin cash and it is this exodus that was the major concern of the bitcoin industry but so far, the exodus towards Bitcoin cash has been pretty minimal and has not raised much concern as yet. Meet in a public area. This reduction in fees can be achieved due to the fact that Bitcoin cash has helped to expand the size of the network which would mean that there is less congestion now.