His hobby is collecting curios.

I buy foodstuff at the supermarket every week.

My father used to learn bojutsu when he was young.

He is a master of jojutsu.

He goes to the dojo every day to learn unarmed martial arts.

He used lip reading to understand her words.

He is thinking of learning ninjutsu.

My hobby is martial arts.

She is studying ancient witchcraft.

He surprised people by using magic.