Is it normal to kiss your girl best friend?
Depends.It depends
Yes, friends sometimes kiss, whether as a casual greeting or because there’s attraction. What it means depends on the two of you, so it’s worth checking that you’re both comfortable and on the same page.
A quick cheek kiss or a playful peck can be completely platonic, while a more romantic kiss might mean one or both of you have feelings—or might just be a moment you shared. People have different norms around affection, so there isn’t one universal rule for best friends.