2. Be good at identifying various disguises. In foreign exchanges, college students should not only talk about friendship, but also talk about the enemy. They should not only be warm and friendly, but also be different inside and outside, bearing in mind that national interests are above all else, and they should not think that national security has nothing to do with themselves, turn a blind eye to acts that endanger national security, lose their due vigilance, or disclose state secrets for personal gain and endanger national interests; Cann't accept the decadent ideology, values and lifestyle of the west, and should consciously resist and struggle.
3. When foreign teachers or expatriates are found preaching western "freedom", "democracy" and "human rights" in inappropriate places, spreading extreme individualism and anarchism, and advocating western material civilization and money worship, they should promptly report to the relevant departments. The reactionary psychological warfare propaganda materials received should be handed in on their own initiative in time to prevent the spread and adverse effects, and the contact with foreigners should be strictly kept state secrets.