#008 Try to be on time.
We're guessing you or the one you're dating is a medical professional. It's hard for us to stick to schedules some times. If you think a particular day and time are going to be busy, set your date for a day you know you'll be able to get there on time. If you're a few minutes late though, make sure you let your date know as soon as you do. They'll appreciate the head's up.