Grooming is a broad topic of discussion, we can go on and on when discussing it but i will narrow it down and point out some important factors the best way i can.

Good Skin
A person with good personal grooming always seem to have clear, even complexion.If you do not have good skin, establish a skin care regime that works for you, exercise regularly, sleep well and drink lots of water.Also a good concealer helps mask those imperfections as a face with filled with spots is a turn off.
Hair around the lips must be removed at all times.