Happy Sheets is a term used to describe a feedback form that measures the level of satisfaction of participants after attending a training seminar or conference. There are several synonyms to Happy Sheets that can be used interchangeably. One such alternative is "feedback forms" or "evaluation forms," which are used to gather insights on the event's success. Another synonym is "survey forms" that can capture more detailed feedback and opinions. Additionally, "mood meter" is a term that can be employed to devise the overall tone of the participant's experience. Irrespective of the name, happy sheets or its synonyms need to be designed mindfully to generate useful insights into the event's success.