They were hanging out in the Boars Hat (a tavern)

Gowther: Hm... We are... friends... a person whom one knows and with whom one has a bond of mutual affection...

Meliodas: ... yeah, normal Gowther.

King: Why do you talk like that?...

Gowther: King... Sloth sin...

King: You're the Lust sin! That's worse!

Ban: delusional King

Meliodas: You're not any better. You're the Greed sin...

Elizabeth: Meliodas, aren't you the Wrath sin?

Hawk: Why are we talking about what sin they are?