Ok for real though. Best Buy is actually a super chill place to work depending on the size of the store you work at.
Ill give you the scoop. They will ask you questions related to jobs you did in the past. Just answer honestly and dress with a pair of jeans and a nice button up (you dont need to over dress). The questions they ask are very easy to answer so don't worry about anything crazy. Just show up answer the easy questions and tell them the truth. ALSO they WILL ask you this question: If a co-worker steals a candy bar. Do you tell a manager and do they get treated like they stole a $5000 TV. SAY YES TO THIS. They will love you for this. If you get the spot you will love the job its a super chill job. GLHF :D.