<prompt> Human: I have been getting new cards issues for the few credit cards that I have, all microchip cards. I usually sign the back of the cards in the designated area, however I have heard it is best not to do so or write something to the effect of See ID.What is the best practice?PS - love this sub. thanks for all the advice!  <response>: Yes I was a cashier once.Most people i saw had written ASK for I.D in that space. Sometimes they would have forgotten to carry their ids on them and I would outright reject using that card. Make sure you have your id with you if you do this. 