Reveler
Reveler is a noun referring to a person who participates in revelry or boisterous celebration. A reveler is typically someone who enjoys lively activities such as dancing, music, feasting, and socializing, often during a festival, party, or public celebration. The term can describe an individual or a group of people, especially when they are actively taking part in festivities.
The word derives from the verb revel, meaning to take part in festive merrymaking. In English, revel
In context, revelers are commonly described in accounts of cultural festivals, street parades, carnivals, or nightlife