The first thing you do when your phone is wet or in the water is turn off your smartphone if it's on. Do not try to press or turn on any button after closing. Doing so will reduce the risk of short circuit in the phone. If you have an old phone that has the ability to remove the battery, easily remove the battery, memory card and SIM card. If the phone has a non-removable battery, there is a risk of getting a shirt.
Now dry the phone under a fan or through a hair dryer (blower). Wipe the water on the phone with a cloth or paper napkin.