Chell wrote:
How do I add tints of color to a black and white image?
Depends what you mean by adding a tint of colour.
If you mean adding an overall tint of one single colour to the entire image, then you can do it using Image>Adjustment>Photo Filter…
If you want to add specific colours to specific areas of the image, just create a new layer, set the blend mode to either Colour, Overlay, or Soft Light, and paint your new colour into that layer.
Once done, adjust the opacity until you get a pleasing and natural result.