Mens Shoes Size If I Am A Size 8 In Womens Shoes, What Size Would I Be In Mens?

If i am a size 8 in womens shoes, what size would i be in mens? - mens shoes size

I'm normally a size 8 instead of women, but sometimes I'm lying like shoes, but never really know, what size to buy and hard to tell her that when buying things from the Internet .. Can someone help me please?