Answer:
1. me (you are washing your face)
2, none (you are not washing yourself, just your room therefore it is not reflexive)
3. none (he is not putting clothes onto himself, therefore it is not reflexive)
4. se (he is putting the sweater on himself, therefore it is reflexive)
5. se (she is washing her hair, therefore it is reflexive)
6. none (she is brushing her dog, therefore it is not reflexive)
Explanation: