Just because your babies are born at the same time or look alike, does not mean that they are not individuals in their own right. It may be amusing to dress them up alike and that people cannot tell one from the other. But it is always important to remember that they are two separate beings and to treat them as such from day one. Avoid referring to them as "the twins" and use their given names. Be sure to take photographs of each child separately because at some point he will ask for a photograph