Etiquette shifts by both culture and generation

Emoji norms aren't only a country-by-country question — they also shift by age group within the same country, which means the 'safe' emoji for one reader can land differently with another.

The smiling face that isn't always friendly

In some contexts, particularly among younger users in China, a simple smiling face emoji has taken on a passive-aggressive or dismissive tone rather than a warm one — closer to a polite brush-off than genuine friendliness.

Frequency and formality expectations

Some cultures and workplaces treat frequent emoji use as normal and warm, while others read it as unprofessional or overly casual, especially in first contact with someone you don't know well — starting more sparingly and matching the other person's tone is usually the safer approach.

A few practical rules of thumb

When messaging someone from an unfamiliar culture or an older relative, lean on emoji with broadly stable meanings — a plain smile, a heart, a thumbs up in low-stakes settings — and save slang-heavy or gesture-based emoji for people you already know well.