I have just married a man who already has young children. How do I start getting close to them?

Start slowly as a loving friend, not as a replacement for their mother. Young children need time to trust a new face at home, so do not force them to call you ‘mama’ or show affection straight away. Spend time on things they enjoy, such as reading stories, cooking or playing, and let the warmth grow by itself. Respect their own mother's place and never speak ill of her in front of the children. Give sincere praise and keep every small promise, because that is what builds a sense of safety. Ask your husband to explain your role to the children gently. See children in polygyny.