Q451: who are the mahrams

what are the do’s and dont of wearing a veil, whom isit allowed to show your face

Hijab should be observed in the presence of Non Mahrams, and revealing the face in front of a Mahram is permitted,
Mahram is that male with whom marriage is prohibited permanently,
They are mentioned in surah noor(24:31) 1,Father,(including grandfathers from both the mother’s and father’s side) 2, Father of the husband, (because they are regarded as fathers). 3,Son, (including grandsons from both; sons and daughters) 4,Husband’s son (from another wife, because the woman is regarded as their mother) 5,Brother (including half brothers and step brothers) 6,Brother’s son, (because marriage is permanently prohibited between a person and his paternal aunt) 7,Sister’s son,(for the same reason mentioned)
Relations due to breastfeeding are also haram, they are the same as blood relations, however we don’t get many cases of that type in this day and age, ( maybe due to the excess of bottle-feeding) wassalam