how we can read unread replies on any topic in direct method?

Friends.
Unread replies mujhe dhoondne meen mushkil hoti hai.
Koi mere rehnumai ker de gah keh main poore topics ko eik eik ker ke dekhne ki bajai apna topic ya kise topic per ager coment doon to us topic ki unread replies[ager us coments ke baad aur comments aai hoon aur main woh read na ho chukke hoon]kise direct method se check ker sakoon?
Please.....Respone jlde dejiey ga.
Request to admin and moderaters for quick responce.
Thanks