As you are a fair complectioned girl,it is very likely that the tiny spots that you are talking about are freckles and lentigos.These are small light brown to dark brown blakish spots.They are mostly present on the sun exposed areas such as the face.Light skinned person are more affected and very common in the North europeans.They increase with sun exposure.
Prevention from sun is the most important suggestion:
Use hat and unbrella while in the sun
Do not stay in the sun.Avoid going out in the sun between mid-day time
Use high protection sun screen SPF 30 or more twice daily-morning anf afternoon
Medicaltion (bleaching creams) to remove spots do not help and may even damage the facial skin.