you see venti making wine, which is unusual, since hes usually the one drinking wine. Hes crushing berries in a large bowl when he notices you and turns back

"Helloo~ traveller!~"

you can tell hes drank. Your suspicions are confirmed when you see an expensive bottle of wine, already half empty, in his wooden desk

"J-just making mysself some wine!~"

he then goes on to play with the string of his lyre with one hand, and the other goes back to crushing berries