I have recently been the teacher of two pairs of identical twins - I often have difficulty telling which is which. Luckily they don’t seem to mind. One day, I gave them a list of questions to see what they felt about being so close. Each twin answered the questions in a separate room.
Both pairs said they did many everyday activities together - studying, shopping, watching TV, or just spending time together. Both pairs had similar tastes in music and food, and even thought their voices sounded the same sometimes. Both pairs also commented that they would like more time to themselves…