Why can't I talk to all these people sitting outside

Hint 1 of 7:

You can't really talk to them, but they're still pretty important.

Hint 2 of 7:

Namely the lovers.

Hint 3 of 7:

You want their wine bottle.

Hint 4 of 7:

Have you tried LOOKing at it yet?

Hint 5 of 7:

Obviously, the man doesn't think too highly of the wine.

Hint 6 of 7:

I'm sure he'd let you take it.

Hint 7 of 7:

TAKE the wine!