Everyone can't give you the right opinion unless they see your actual footage.
Maybe you approach girls in a friendly manner but the barista guy is just jealous.
Maybe he sees girls getting creeped out and he had to take an action to protect the business.
I have a business. If I see the guy talking to girls in a normal way, I am careless. However, if I see a girl getting very annoyed and leaving the store with unhappy face, I will definitely kick him out.
Maybe you approach girls in a friendly manner but the barista guy is just jealous.
Maybe he sees girls getting creeped out and he had to take an action to protect the business.
I have a business. If I see the guy talking to girls in a normal way, I am careless. However, if I see a girl getting very annoyed and leaving the store with unhappy face, I will definitely kick him out.