Translation of "рюмку" in English

Хотите рюмку текилы?

Would you like a shot of tequila?

поднимает рюмку и выкрикивает «Моктор!»,

he picks up his shot glass and he shouts "Moktor!"

Том залпом выпил рюмку текилы.

Tom drank the shot of tequila down in one gulp.

Я предложил Тому рюмку водки, но он отказался.

I offered Tom a drink of vodka, but he refused it.

Он поднёс рюмку ко рту и выпил всё одним глотком.

- He raised the glass to his lips and drained it at one gulp.
- He raised the glass to his mouth and drained it all in one shot.