I would like to know what "Jules flicks him with champagne from her glass. ‘Oi!’" means in the following sentences:
‘And he seemed so grown-up,’ Jules says, heedless of the interruption. She touches Charlie’s arm, proprietary. ‘When you’re sixteen, eighteen seems so much older. I was shy.’
‘That’s hard to believe,’ Johnno mumbles.
Jules ignores him. ‘But I know at first you thought I was this stuck-up princess.’
‘Which was probably true,’ Charlie says, raising an eyebrow, getting back into his stride.
Jules flicks him with champagne from her glass. ‘Oi!’
They’re flirting. There’s no other word for it.
- Lucy Foley, The Guest List, Chapter 12
This is a thriller novel published in 2020 in the United Kingdom. One hundred and fifty guests would be gathering at some remote and deserted fictional islet called Inis an Amplóra off the coast of the island of Ireland to celebrate the wedding between Jules (a self-made woman running an online magazine called The Download) and Will (a celebrity appearing in a TV show program called Survive the Night). The day before the actual wedding day, Hannah, the wife of Charlie (Jules' friend), arrived at the island and is now at the dinner party for the rehearsal dinner with only some selected guests. And during the party, Jules and Charlie say how they came to meet in the first place, back then when Charlie was an eighteen-year-old sailing instructor and Jules was a sixteen-year-old, supposedly shy girl. Seeing them recounting their story, Hannah thinks they are flirting.
(1) In this part, I wonder what Jules did when she "flicked him with champagne from her glass." Does it perhaps mean that Jules dipped her fingers in the champagne in her glass, and spattered some champagne drops over Charlie?
(2) And I also wonder what "Oi!" means. Would that be perhaps similar to "Hey!"?