To break the rules, enter without permission or do something in a clandestine manner. It is used to describe someone who does not respect established boundaries.

To pull someone's leg, mess with them, trick or tease them just for laughs. In Spain and Latin America tomar el pelo is playful deception — the goal is laughs, not harm.

Pretending to be unaware or uninformed about something to avoid getting involved or committed to a situation, often with a straight face. This behavior is commonly seen in someone who wants to steer clear of trouble or responsibility.

Not being a good time to ask for something or bring up a sensitive topic. It's said when the atmosphere or someone's mood isn't right for discussing certain things.