1
general::
Phrase(s): (I’ve) been keeping myself busy. [and] (I’ve been) keeping myself busy.
a standard response to a greeting inquiry asking what one has been doing. • Bill: What have you been doing? Bob: I’ve been keeping myself busy. What about you? Bill: About the same. • John: Yo! What have you been up to? Bill: Been keeping myself busy.
McGrawhill's American Idioms And Phrasal Verbs