Andrei takes his drink and waltzs over to the young men who greeted him, clapping one on the shoulder. "How is your evening going, my new friends?" He smiles broadly, and takes a rather large drink of whatever he ended up with. He sighs, "Whatever this is, it's delicious..." He tips the rest of it into his mouth, and looks at his compatriots. Assuming they seem amenable to his presence he asks them "Who's buying the next round?" with a wink.
Spoiler: OOC
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If needed, diplomacy. Take 10 for 23.
Andrei is assuming these are young rich guys with too much time on their hands and not much of interest in their lives. He's hoping he can provide some entertainment just by showing up, and maybe get some interesting information. If not, some free drinks would suffice. :p