This is called learning process. learns number of many things we can say that every assistance makes the child learn and this process continues till the life ends. an adult who learns his daily routine from childhood and then the person is in habit this happens only by learning process only. Charles E. Skinner says: "Learning is the process of   progressive behaviour adoptions". Behaviourism is the part of learning basically it explains each step of learning process. Habit, knowledge, attitude comes by learning.