PokeStops are places in Pokemon Go that allow you to collect items such as eggs and more Poke Balls to capture more Pokemon!
These will be located at select places near you, such as historical markers, monuments, and art installations. PokeStops are indicated on your map with blue icons, like the ones above. When you’re close enough to interact with the icon, it will change shape. Clicking on the icon will then allows you to swipe the Photo Disc, which will generate items in bubbles. Tap the bubbles to collect your items! (You can also just exit the PokeStop once the items appear. They will be collected regardless).
After you’ve collected items from a PokeStop, the icon’s color will change to purple, and you will not be able to collect items from it again until it refreshes to blue, which takes about five minutes. Conveniently, you don’t need to travel away from the PokeStop for it to refresh, so if you live or work on a PokeStop you can get items often!
Most often, a PokeStop will grant you three to four items at a time. Until you’re level 5, PokeStops will grant you exclusively PokeBalls and Pokemon Eggs. One you reach level 5, at times PokeStops will generate up to six PokeBalls, and other items such as Revives and Potions to use now that your trainer can access Gyms and battle other Pokemon.