I wouldn’t say no to ...

[Kazuo]

Hello!

I wouldn’t say no to a glass of beer.

What are possible sentences in response to which the above sentence would be said?
Or on what occasions would it be said?

A. How about a glass of beer?
B. What do you drink?
Both A and B are wrong, I think.

Thanks in advance

[Editors4Writers]

Well, technically, option A is correct if you rephrase it.

Then how about I buy you a beer? (There's no need to use glass as a measure word for beer.)

B is also correct if you use it this way:

So what kind of beer do you like?

OR, "Is that so? What kind of beer do you [drink or like]?" Drink and like are interchangeable.

The "proper way" to reply depends on the context.

[bertietheblue]

- [Do you/You] fancy a pint [of beer]?
- [I] wouldn't say no!

- How about a massage?
- [I wouldn't say no!

- Would you like a piece of cake?
- [I] wouldn't say no!

[square bracketed text is optional in casual speech]

Since the beer/massage/piece of cake (or whatever you're offering to provide) is mentioned in the question, the short answer "[I] wouldn't say no!" is fine.

[Rover_KE]

Q. What would you like to drink?
Fancy a drink?
Can I get you anything (to drink)?

A. I wouldn't say no to a glass of beer.

Rover

[Kazuo]

Hello, Teachers!

As a translation of the given sentence, OALD gives ….would accept one willingly.
I thought it was an expression used by drinkers because of willingly.
But after your explanations I think I’ll use it wherever possible.

Thank you very much