random act of kindness

Translations
случайный акт доброты
She performed a random act of kindness by paying for his coffee.
Она совершила случайный акт доброты, оплатив его кофе.
Definitions
A spontaneous and selfless gesture intended to help or bring joy to someone else, often without any expectation of reward or recognition.
Words
random

adjective
случайный
act

noun
поступок
of

preposition
из
kindness

noun
доброта