You can leave the tap open periodically so that water drips out and the cat can drink. If your pet wants to drink, she will use her paw. But why does a pet do this?
Doesn't like water
Some cats simply don't like the feeling of water on their fur and whiskers, so they use their paw as a cup. The fur on their paw soaks up the water, and they can lap it up without the unpleasant feeling of water dripping off.
It is also worth noting the sensitivity of cat whiskers, which can detect the slightest vibrations and air flow. The same applies to contact with water. When water gets on the whiskers, it can cause discomfort, so cats prefer to use their paw.
Curiosity
Cats are very curious creatures, and this is what leads to their funny habit of drinking with their paw.
When cats explore their environment, they tend to use all parts of their body. When she spots water nearby, she may play with it to see how it responds to touch.
The way the water ripples when touched can amuse your cat while also communicating that the liquid is safe to touch and drink.
Physical limitations
Some cats use their paws to drink water because of physical limitations. Perhaps her vision isn't quite what it used to be, so she can't see the water clearly. Or she may have a medical condition that makes it difficult or painful for her to lower her head and lap up water from a bowl.
In such cases, using the paw may be the only option available to her. Make sure your cat always has access to fresh, clean water and that her bowl is within reach.
A water bowl placed too close to a wall or nearby piece of furniture may make it difficult for your cat to access it to drink.