Without them wearing the traditional pink or blue or having any specific gender items (nor of course looking at their bits) how old does a baby start looking like a boy or a girl?
Would you be confident looking at a newborns face and saying what sex it is?
I took an right year old to theatre for surgery, the theatre sister was going on about how beautiful she was... Check the list Sister, your next case is a circumcision! So place a child in a gender neutral theatre gown, it can be hard to tell.