Question

why cat's close their eyes while drinking milk or anything ?​

Answer 1

Answer:

When you pet your cat, they will often close their eyes. They do this for a few reasons, but mostly because they do not feel the need to be "on" and don't sense any immediate threats around them. This is mainly because you are making them feel at ease.

Answer 2

Answer:

In Telugu there is a proverb saying "Cat close it eyes and drinking milk ". The meaning of this proverb is, it think while it is drinking milk no one is seeing it by closing its eyes. This proverb is used to tell if some one is doing some mischief they think no one is seeing that like a cat.