any tips?

So my boyfriend of almost 1 year will be coming over my house tomorrow for Halloween. We are just having like take out and I'm having him over and my mom is having my uncle and my aunt and cousin over and a few other people. My boyfriend has never met anyone In my family besides my mom, a different aunt and my grandma. I'm super nervous because I don't want it to be awkward. Meeting new family members is always a bit weird.. we are both very shy when it comes to meeting each others families and such