everytime i pull stop and park the barina(or aveo in us) i hear a tink tink tink sound coming from under the car around the front passenger drivers side area. had a look underneath but doesnt seem to have any fluids leaking or anything but just sounds 'wrong'. it kinda sounds as if some kind of fluid is cooling off is this true?

does anyone else have the same tink tink noise?

thanx for the help