What is another word for acting strange?

Acting strange can be described using a variety of words and phrases, including:

- behaving oddly

- acting out of character

- displaying unusual behavior

- being offbeat or eccentric

- exhibiting strange or bizarre behavior

- demonstrating unconventional behavior

- showing peculiar or quirky traits

- acting strangely or unnaturally

- straying from the norm or expected

- engaging in unusual or atypical behaviors