I mean, I don't know what anybody can tell you if you couldn't figure out where to go.
A balcony? A porch? 'Let's go for a smoke/drink outside?'. Invite her to go buy more booze (or specifically 'the wine/beer/whisky I really want') with you.
A balcony? A porch? 'Let's go for a smoke/drink outside?'. Invite her to go buy more booze (or specifically 'the wine/beer/whisky I really want') with you.