How Would Gi-hun Being The Frontman in This Scene Would Work ?

I see a lot of people talk about that this is Gi-hun in this photo and he's with the VIP's.

But honestly, I only have one important question about this: Does he even know how to speak English ?

Like, how is he even gonna communicate with them ? None of them speaks Korean and if he tries to speak Korean without realizing it or something, it'll look extremely sus and he will get caught real quick.

Also, he's probably not aware that the VIP's are from different countries and the Frontman talks English when he's with them. But does Gi-hun know English ?

I'm assuming maybe at some point he tried to learn it but I doubt that (Also in season 1, his mom said that when his daughter moves to US, she will forget how to speak Korean and he will be a total stranger to her. Maybe that encourged him to learn English ? But still, I don't think he knows how to speak it).

Also I really don't think it's him. Like, Frontman doesn't look like In-ho in here either but I don't think it's Gi-hun. Maybe it's Jun-ho as an undercover intruder again ? What y'all think ?

https://preview.redd.it/y0jducd78xoe1.png?width=537&format=png&auto=webp&s=2b220e31b946d4317e00f7701640656b78a89c96