This will take practice, but with time, you will be better attuned to spot the elements that are highly effective in creating a visually interesting black and white image.
An important part of black and white photography is learning to focus less on colour, and let the various shapes, textures, and tones of your scene take centre stage. This will take practice, but with time, you will be better attuned to spot the elements that are highly effective in creating a visually interesting black and white image.