さ - Interjection

さ is a casual, flexible interjection used to get someone’s attention, to switch topics, or to signal a moment of realization or decision. It often marks a transition: inviting action, prompting agreement, or giving the speaker a moment to think. It’s common in informal conversations among friends or peers, and can convey a sense of liveliness or impatience depending on tone. Because it is casual, avoid using さ with strangers or in formal settings. It can stand alone or begin a clause in casual dialogue, sometimes followed by another clause that reveals intention, a decision, or a reaction.