Question:
A man like you should not do this, _______?
Which question tag should I use in the blank space?
- should he?
- should you?
Which would be grammatically correct? I think 1 is true.
Question:
A man like you should not do this, _______?
Which question tag should I use in the blank space?
Which would be grammatically correct? I think 1 is true.
When speaking to Bob, Alice is not talking about him. She's talking about a man like Bob. A general man, who happens to be like Bob. So it's should he.
Bob, a man like you shouldn't do this, should he?
The general statement and its impersonal tag question is not a personal criticism; it's a hedged criticism, a criticism by analogy, a gentle prod in the right direction.
Using should you? as the tag question turns what should be a general statement, "A man like you shouldn't do this" into a specific statement which is directly aimed at Bob: "should you?" It becomes pointed, a personal criticism.
[Edit: seeing Andrew Leach's answer, and ScotM's comments, their replies are better. Consider this wrong, but left for completeness].
Alice speaks to Bob: "Bob, a man like you should not do this, should you?" (Talking to Bob as the second-person)
Alice speaks to Claire: "Claire, a man like Bob should not do this, should he?" (Talking about Bob as the third-person).
Alice starts by speaking to Bob: "Bob, a man like you should not do this", Alice pauses and turns to address Claire: "should he?". (Changing who is second-person and third-person part way through).
In the sentence you've asked, "a man like you" most likely goes with "should you".