How to use seasonings properly on food when cooking?

Sorry if this sounds stupid but I have no experience in using spices in cooking, except salt and pepper.

How to use spices that come in a bottle, such as oregano and basil? Do I just sprinkle it ontop of the food and cook it or do I need to do something special with it first?

I sprinkled basil on top of some chicken tonight and baked it but I don’t know if that was correct.