Because of formal reasons, you do not have to call the Austrian woman by name.
You must know that Austrian women appreciate personal space very much, so do not interfere it, if she herself does not want it.
Do not try to hug or kiss Austrian woman on the first date.
As a good present you may use chocolate, wine or perfumes.
If you have just met Austrian girl and having the first date, be sure that topics for discussion are neutral.
According to all said above, if you are dating Austrian girl, you have to take special care about your appearance in order to look appropriately in front of her.
For example, evening in restaurant requires semi formal, but not casual clothes.
Respect for the punctuality has more vivid aspects of Austrian culture than just following the time and be precise.
People in Austria follow not only legislative civil laws but also respect and keen on to the rules of social behavior, formed by centuries before.
You also have to know that in Austria people invite friends for some meeting in weeks in advance.