Listen and read.
− What would you like to be?

− I’d like to be a video director.

to teach − a teach$\mathbf{\text{er}}$
to sing − a sing$\mathbf{\text{er}}$
to dance − a danc$\mathbf{\text{er}}$
to act − an act$\mathbf{\text{or}}$
to explore − an explor$\mathbf{\text{er}}$
to produce − a produc$\mathbf{\text{er}}$
to direct − a direct$\mathbf{\text{or}}$
to photograph − a photograph$\mathbf{\text{er}}$
Listen and repeat.