Here are some steps to style a long bob:
1. Start by washing your hair and towel-drying it. You can also use a heat protectant spray before styling.
2. Apply a styling agent such as mousse or soft-hold gel into your hair.
3. Blow-dry your hair using a round brush to create volume.
4. Use a flat iron to curl the ends under and give it more volume.
5. Tease at the crown for more added volume using a round bristle brush.
6. Finish off with hairspray to hold the style in place.
I hope that helps! Let me know if you have any other questions.