Welcome! Electronics is a lot of fun especially around this time of the year! Be sure you guest service everyone in your department "CIHYFS?", and learn all the attachments/service plans that go with core items.. You'll be alone typically until holiday hours start kicking in, then it will go apeshit back there and it might be 2-3 of you.
Make these 3 things your focus and you will set a good impression:
1) Great Guest Service, helping people find what they need, and being polite/courteous
2) Pushing Service Plans/ESPs, making people really believe they need them. Very important, if you can't get attachments/ESPs your AAR score will be low which is bad.
3) REDCards. OK while not as important as AAR for electronics, if you can manage to pull some REDCards in, you will get attention of your leadership team fast.