Wiktionary
see which way the cat jumps
vb. (context idiomatic English) To delay taking action until something else happens first.
Usage examples of "see which way the cat jumps".
He is a dear fellow and a capital seaman, but he does tend to ramble in his speech and start false hares: and in any case it is, as he often said, an extraordinarily complicated situation in the Adriatic - divided loyalties - some good men on either side, but more waiting to see which way the cat jumps, or as Christy put it “.