Invited to a new boyfriend's dad's birthday dinner
I have been dating a guy for two months and just recently, briefly met his family. They asked him to invite me to his dad's upcoming birthday dinner. I just met hiis dad once and the relationship is still new enough that I don't know enough about him to get him a good gift. What is the etiquette for the dinner? Am I obligated to get a gift? A card? Who pays for dinner?