What is like?

A like is a quick reaction, often shown as a heart or thumbs-up, that people use to show they enjoyed or agree with a social media post.

Likes are the simplest form of engagement. They give you a quick sense of how people feel about your content, and many networks use them as one of the signals for deciding what to show in feeds. A steady stream of likes also adds social proof, encouraging others to stop and look.

Most networks have a like or similar reaction. Facebook and LinkedIn offer a range of reactions beyond a simple like, while Instagram, TikTok, Threads, X and Bluesky use hearts. Some networks let you hide like counts on your posts if you prefer not to show them publicly.

Likes are easy to give, so they often matter less than comments, shares or saves. Treat them as an early sign of interest, not a final goal. Focus on content that earns deeper engagement, and avoid buying likes, which damages trust.

Example

A cupcake bakery notices its frosting close-ups get lots of likes but few comments, so it starts adding a question to each caption.