On the first map available in Hello Neighbor: Hide and Seek you will find geysers. They allow you to get atop high cabinets, shelves, etc. Without them, you will not be able to complete the first task.
You can adjust the power of geysers on your own. All you have to do is place stones on unnecessary geysers, and the one that remains covered will have much more power.
You can block geysers with stones. These are located in different parts of the map. There are more stones than geysers, making them easy to find.
Boxes, balls, and mascots will not block the geyser.
Remember to mainly block geysers that are near the one you want to use.
The geysers are constantly active, you just need to run up to them and they will raise you up in the air.