B: not really. Sometimes, I even let other people make key decision for me.
A: what kinds of decisions do you leave to other people?
B: there are basic decisions like which restaurant to go to. I can never seem to choose. I let my parents make big decisions for me. They chose my university and my course. I ended up studying something that I didn't like, although the university they choose was fine.
A: your parents will be choosing your girlfriend if you aren't careful! Why don't you try being more decisive? Start with some basic ones. When your friends are discussing which restaurant to eat at, make a suggestion. As you haven't suggested anything before, they'll probably accept your choice.
B: that's a good idea. You're very decisive, I've noticed. So, which bar are we going to this evening?
A: I can't make a decision. You'll have to put forward an idea.
B: you see? You're becoming more decisive already!