Make clear your audience - Know who your target market is and Create personas to pin down their discomfort details. Don’t check out to target Everybody!???????? ??? ??????? ????? ??? ???????? ?????????? ??? ????????? ??? ?????????? ? ??? ??????? ???.???? ?????? ?? ????????? ?? ????????? ??? ???????? ?????? ????????.?????????, ????????????? ??? ??