<human>: My boyfriend and I have been together 8 months now and he invited me to meet his family for the first time. 

The scenario : me, him, his mom, his brother, and his sister will all be driving for 5 hours in one car together to go stay with his uncle and grandma for 3 days, then driving back together. 

This is a very intense way to meet the family for the first time, and I'm wanting to make a good impression. 

Any advice? Etiquette? What should I bring? Any ideas for gifts for the family we're staying with, or is that going overboard? Has anyone done something similar? 

Thanks!

Can you condense the text into three sentences or less?
<bot>: meeting my boyfriends entire family on a 5 hour road trip and 3 day stay at family house. Advice for good impression and etiquette wanted.