Please, make it a bit more explicit. Does it mean I should shut down my miners? Or just try to avoid any send /receive transaction from / to my wallet? And what about activities on altcoins - btc Exchanges?
You should try to not make any transactions around August 1st. That means both make and receive as you can easily be tricked into thinking you have money when you don't or your transactions may not be confirmed when you think it has been. If you have miners, then read up on what all of the proposals are and point your hashrate towards a pool that mines the proposal that you support.