1, outstanding features: highlighting the particularity of propaganda and writing, and making it easier for people to remember by emphasizing, bolding and coloring.

2. Use slogans: Slogans are short and easy to remember slogans, which can help people quickly remember the special features of propaganda words.

3. Making posters: Posters are a visual propaganda tool, which can show the special features of propaganda words through images and words, making it easier for people to remember.