The cat often skulks [skʌlk] around the entryway, waiting for someone to open the front door so it can sneak out.

skulk [skʌlk]
verb
To skulk is to move around or hide in a stealthy or secretive way.

A person or animal that is said to be skulking is often assumed or considered to be up to some form of wrongdoing or mischief.

Scandinavian origin. As for skulk specifically, its closest known Scandinavian relative is the Norwegian dialect word skulka, which means “to lie in wait” or “to lurk.”

English