Me too/neither/either

[joham]

Sue: Been keeping busy? What
are you up to?
Bob: Not too much.
Sue: Yeah. Me too.

This dialogue is taken from Dictionary of American Idioms and Phrasal Verbs. I'd like to know if we can say 'Me neither/either' to respond to
'Not too much' without changing the meaning.

Thank you in advance.

 

[emsr2d2]

Sue: Been keeping busy? What
are you up to?
Bob: Not too much.
Sue: Yeah. Me too.

This dialogue is taken from Dictionary of American Idioms and Phrasal Verbs. I'd like to know if we can say 'Me neither/either' to respond to
'Not too much' without changing the meaning.

Thank you in advance.

"Me too" is the appropriate response to a positive statement. However "Not too much" is a negative statement, therefore if Sue wants to express that she is also "not doing too much", she should say "Me neither."

I have heard "Me either" in response to such a question, but usually from Americans so perhaps there is a difference between BrE and AmE.