Stimming can be very important for autistic people, and other neuro divergent persons, to control emotions, give a sense of environmental control, or expression when words fail. Please don't shame anyone for stimming
Young people with autism explaining self stim behavior
Cognitive empathy: the ability to predict others’ thoughts and intentions, reading between the lines. Affective empathy: the ability to share another’s feelings. Compassionate empathy: the desire to help others (though perhaps not knowing how).