In Assassin's Creed Valhalla you can acquire the skill of charisma, which will provide you with additional dialogue options. You may find it useful in some missions. This page of our guide has the locations of flytings in Eurvicscire.
In Eurvicscire you will find a woman who wants to talk to you. The flyting is in Picheringa town. It is easy to see thanks to a dialog icon above the man's head.
The fun lasts three rounds. This time, you don't have to try - just drink and have fun. Every answer is correct.