Swipe and Sign for Safety's Sake
When using your debit card in a store, you're usually asked whether you wish to use it as a debit or credit card. First Hope Bank recommends that you always respond "credit," for safety reasons.
Why is it more prudent to choose "credit"? For one, you won't need to enter your PIN (Personal Identification Number) with someone possibly looking over your shoulder. You'll simply be asked for your signature instead.
For another, there have been instances in which major retailers stored PINs, only to have them later stolen and used fraudulently.
For purposes of your transaction, it makes no difference whether you select "credit" or "debit." It can, however, make a big difference to your financial safety.