Pictures or not pictures

Sometimes difficult for me to take pictures because I feel shy . It is so beautiful and so private to take away an human instant look that most of the time I do not dare or when I dare it is too late! I usually ask for permission . There are 2 kinds of answers : either people love to see themselves on a numeric camera , quite rare around and they take the pause right away ! Either they expect you to give as well something in return " photo roupies ! " , 10 or 20 roupies ( 15 ou 30 centimes ) to buy an ice cream or they expect you to buy at least a bag and that is what I diid to take a picture of those 2 old people selling hats and belts and bags from a northern state !