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Phrase(s): (Have you) been keeping cool? [and] (Have you been) keeping cool?; You been keeping cool?
Inf. an inquiry about how someone is surviving very hot weather. • Tom: What do you think of this hot weather? Been keeping cool? Sue: No, I like this weather just as it is. • Mary: Keeping cool? Bill: Yup. Run the air-conditioning all the time., Phrase(s): (I’ve) been keeping cool. [and] (I’ve been) keeping cool.
Inf. an answer to a question about what one has been doing during very hot weather. • Jane: How do you like this hot weather? Bill: I’ve been keeping cool. • Mary: Been keeping cool? Bob: Yeah. Been keeping cool.
McGrawhill's American Idioms And Phrasal Verbs