"To select the photographs" means to choose or pick out specific pictures from a group or collection based on a certain criteria or personal preference. Full definition
Typically, one male student selected photographs of himself in which he displayed shooting skills in basketball and ball control in football. (politics.co.uk)
After selecting your photographs and saving them in a single folder on your computer, prepare a narrative to accompany the presentation. (educationworld.com)
So, when you join an adult dating website select your photographs with care. (maritalaffair.com)