1. A hobby is something you like to do. Hobby is something that you enjoy to do.
2. People have different hobbies. For example, hobbies are reading, singing, swimming, drawing and many others.
3. A lot of people also like to collect different thing. Those things are ussually stamps, coins, postcards, shells, books and others.
4. A thematic collection is about collecting by special theme or subject. For example, a collection of postcards with landscapes or a collection of gold coins.
5. My favourite hobby is... I like it because it makes me happy and I really enjoy doing it.