In case your family members have not got adjacent seats during automatic seat assignment then make a humble request to other travellers and try for seat exchange so that all of you can sit together.
In case you want to take a longer break at some bus stop due to natures call then inform the bus conductor about the delay so that he will wait for you.
Take cell number of bus conductor. In case you miss the bus at any stop then it will help you to track him or catch the bus at next stop.