KanjiJLPT N5
Report

report, news, reward, retribution

Mnemonic

To report your happiness to the authorities, you need an official stamp. But the bureaucrat frowns — fill it out once more! You redo the report, stamp it once more, and your happiness is finally on record.
Additional thoughts
Picture a beaming person at a government window, repeatedly stamping paperwork. The frustrating cycle of doing it once more reinforces the reciprocal, give-back nature of this kanji.
Quick recall
Happiness needs a stamp done once more to complete the report.

Details

The keyword for 報 is report. This kanji conveys the idea of communicating information, delivering news, or making something known to others. It also carries the sense of repaying or reciprocating, as in returning a favor or responding to something received. In essence, it encompasses both the act of informing and the notion of giving back in response.
On'yomi
ほう
Kun'yomi
むく.いる