Welcome Ayat.
You might start with Face extension, testing (1). Facial recognition. Detect what makes your face - #7 by Juan_Antonio and Face extension, testing (2). Compare two faces. Facial recognition
then Personal Image Classifier: PICaboo and Personal image classifier display and Introduction to Machine Learning: Image Classification and Artificial Intelligence with MIT App Inventor and Face extension, testing (1). Facial recognition. Detect what makes your face - #7 by Juan_Antonio and Awesome Dancing with AI Tutorial