Quick Tip

Vibrance adjustment is the perfect solution when you want to saturate colors in a portrait without over-saturating skin tones. So, if the colors look dull in your portrait, click Layer > New Adjustment Layer > Vibrance. Drag the Vibrance slider to the right. Watch the colors "pop," but the skin tones still look natural. Vibrance does this by increasing the saturation of the less saturated colors more than the colors that are already saturated and ignoring skin tones.

Tips, Tricks & Tutorials

PHOTOSHOP INTERPOLATION METHODS TIPS

Interpolation Methods
(Interpolation Methods found in the Image > Image Size > Resample Image drop down menu, Print dialog box, etc.)

Bicubic Sharper interpolation method is best when reducing (down sampling) the size of an image such as a photograph. When used, it automatically adds some sharpening and the image appears to maintain more detail. However, it may over-sharpen some areas of an image. In which case, Bicubic is the alternative recommended method..
Bicubic Smoother is best when enlarging a continuous tone image, such as a photograph.
Bicubic is recommended for resizing images that contain gradients. It can be used for photographs if resizing in small amounts.
Nearest Neighbor is good for enlarging images that do NOT contain anti-aliased edges, such as screenshots of application dialog boxes.