Problem: He throws a rubber tire on the ground. He is standing near a park bench with a skateboard in his hand. he

Answer: is demonstrating how to do stunts on the skateboard by jumping up on the park bench.

Problem: A person in pink does tai chi. she

Answer: moves around but is basically doing the same basic thing.

Problem: How to perform religious activities as a hindu
Learn about hinduism.
For learning quickly about hinduism you may visit religious websites available in the internet or you can discuss with religious persons who knows better about this religion. When you will learn about hinduism and feel proud as a hindu then you will feel from heart that you should perform some religious activities.
Answer: Read vedas, puranas and gita. You can start from gita, then gradually you can read vedas and puranas.