I had ordered a coffee today and turned to ask my friend if he wanted one. He said no, so I just turned around and said 'eins, bitte', but I got a confused look from the cafe assistant. I then said 'einmal, bitte'. Is 'eins' wrong in this scenario?
It depends on the gender of the thing you're ordering.
- For masculine nouns like "der Kaffee": "Nur einen, bitte" or "Nur den einen, bitte"
- For neuter nouns like "das Bier": "Nur eines, bitte", "Nur eins, bitte" (colloquial), or "Nur das eine, bitte"
- For feminine nouns like "die Cola": "Nur eine, bitte" or "Nur die eine, bitte"