You’ve got experience riding a HD Sportster? Then the transition to the scooter should be an easy one; think the difference between a manual (stick shift) car and an automatic. It’s that easy. Just beware of the brakes on your Kymco. Unlike the HD,they work! 😂
Seriously, as Stig says, practice somewhere quiet then get out there and enjoy. Most of us on here either made the transition from motorcycles to scooters or still ride both.
Welcome on board. Guarantee you’ll love it!