After installation click on the menu for the GDPR Cookie Consent plugin.
By default plugin will enable notice bar for GDPR cookie consent.
Go to 'GDPR Cookie Consent > Cookie Settings' Menu and select 'General > Cookie Bar Usage for' option as CCPA.
After this CCPA Notice bar will appear on your website at the bottom. CCPA Notice bar can be displayed as Banner/Popup/Widget. You can also select position for CCPA Notice Bar depending on the display type you have selected.
Visitors can click on Do Not Sell My Personal Information link to opt out from selling their personal information.