Explain your audience - Know who your target audience is and Make personas to pin down their ache points. Don’t try out to focus on Everybody!???? ??????? ????? ?????????? ??? ??????? ???????????, ???? ????????? ???????? ??? “???????” ??? ??????????? ??? ??? ??? ???? ????????? ??? ??????????? ??? ??????, ?????? ??? ????? ??? ???? ???? ???? ??