When interacting with elements on the page, if any content appears on hover or focus and disappears when hover or focus leaves (like a dropdown or a tooltip).
First verify that the content disappears when hover or focus leaves. If the content is persistent on mouseout/focusout events, this criterion is inapplicable.
Ensure that the dropdown or tooltip can be hovered over itself without the content disappearing. Move your cursor from the element that caused the popup (the triggering element) over the dropdown or tooltip.