During the process of shuffling, it is not unusual for the tarot cards to misbehave, jump out of the deck, turning upright. These cards are trying to get your attention, and need to be evaluated into the reading.
Some readers place the cards upon the table, and then continue to shuffle. I return the cards to the deck, but take note of them. It's amazing how often the cards return as part of the spread. But, even if they don't, they get some attention in the reading. They get double attention if they return.
What do you do with your misbehaving tarot cards?