Be on time at least because other people too have their own appointments. I usually panic if I’m late though I know that I’m a frequent tardy person. My hands are just full and I don’t want to say No to anybody who need my help, that’s why I will try my best to accept everything with an advance directives of being late. But if I’m the one who set the appointment, I’m the earliest person to arrive because I don’t accept other appointments. It’s just a matter of time management.