Does it sound natural to say
I'd like to have a cup of coffee
at a café or is it too wordy?
It sounds like the more wordy the more polite.
Does it sound natural to say
I'd like to have a cup of coffee
at a café or is it too wordy?
It sounds like the more wordy the more polite.
In the UK, normally I hear people just say
The last one has a slightly American feel to me, but is still used a lot here.
If you want to be more polite, you just could add 'please'.
If you want to be polite and concise, a common phrase is "May I have...?":
May I have a cup of coffee?
If you want to be particularly polite, then you can add "please" somewhere in there:
May I please have a cup of coffee?
or
May I have a cup of coffee, please?
Of course, if we're talking about word count here, then adding "please" will make it just as wordy as what you suggested. You observed that more polite tends to imply more wordy, which is generally the case. Placing more emphasis on formality tends to require more words, in general.