Actually, it all depends.
I like the jumping cards, I feel they have something to say, so I either use them, or place them back in the deck, and continue shuffling.
It's wild though, every once in awhile, there will be a group of them, and when I lay them out, there's the whole celtic cross positions to be layed.
It's really interesting.
And if I have questions as to their meaning, well, I just draw another card, unless one jumps to the answer.