Tiny start: 'Make one little picture message for yourself.'
Make it free and suitable: Existing broad paper/board and a familiar suitable tool, or an actually willing adult making on accepted child directions. Check ordinary local access/tool suitability. An adult can describe the empty area and follow the child's exact requested mark. No worksheet or writing.
Own activity: Choose an own job or leave it unnamed. Make/direct one mark on existing suitable paper or a board, then ask whether anything comes next.
Notice without a score: Notice only the actual choice and who made the mark; unknown meaning stays unknown.
Optional end: Keep it, add another wanted part, erase an agreed board picture, or stop. No audience or return to school.
The child can stop, rest, ask for help, change the job, keep it private or pass. No child/body movement, sound, spelling, response length, photograph, private details or school return is required. Adult reading/scribing/operation is named; a plan does not become a made work, and imagined people are not real recipients.