Make clear your audience - Know who your audience is and Create personas to pin down their pain points. Don’t consider to focus on Every person!???????? ??? ??????? ????? ??? ???????? ?????????? ??? ????????? ??? ?????????? ? ??? ??????? ???.????, ??????, ??????? ? ????????, ??????? ??? ?? ??????????.?? ?? ????? ????? ??????? ?? ??? ?????? ??? ??