亲热 (qīn rè): Warm (Verb, Adjective) — Meaning & Stroke Order

At the wedding, the affectionate interaction between the bride and groom moved the guests deeply.

Have you noticed that they don't seem as affectionate as before lately?

They always greet each other warmly when they meet.

Although he is polite on the surface, he doesn't really want to be overly affectionate with the other person.