Tips to get drunk slowly on friendsgiving

Hello everyone!

This Saturday me and my girlfriend are hosting friendsgiving. I am thinking to start drinking late around 5ish ( starts at 2-3ish) and mostly stay on beers or take a drink in between.

What are the best practices to stay buzzed and not get drunk? Or how to get drunk slowly?

I want to enjoy the friendsgiving but stay buzzed as well.