How can i make my hair wavy with a normal hairbrush?

use a blower and a roller brush, ive done it before.. its much easy if you have thick hair..

How can i make my hair wavy with a normal hairbrush?

that would be difficult with a brush.. here's a tip~ if your hair is long enough, braid it while it is "slightly" damp the night before you go to bed....in the morning release the braides and you should have gentle waves....you can neatly tuck the ends with a curling iron if needed.

Otherwise, to make it wavy, use a product that has a slight waxiness to it and "scrunch while drying it in your hands witha diffuser dryer...

Tina