What you'll need
Make a selection with the Quick Selection tool
Select the Quick Selection tool in the Tools panel.
Add a checkmark to the Auto-Enhance option in the Options bar.
Click and drag over an area you want to select. The tool automatically selects similar tones and stops when it finds image edges.
Add to the selection
To add to the initial selection, just click and drag over another area. The Quick Selection tool automatically changes to the Add to selection option.
Subtract from the selection
To subtract from the initial selection, press the Option key (MacOS) or Alt key (Windows) as you select an area you want to remove from the selection. When you release the Option or Alt key, the Quick Selection tool switches back to its Add to selection option.