I like the juices here. What I don't like is the perpetually slow service. The person ahead of me , according To the cash register, paid 10 minutes earlier. Two of you were working there. Not once did one of you even make eye contact with me while waiting directly at your cash. Her one drink must have been incredibly complex since it took the full energy and attention of both employees to make it.
Here's a few phrases you may want to consider. "Sir, we will be right with you.""just finishing up here" "just a moment."
Or you could ignore people.
I wasn't the first person who walked away either, but I thought I shouldn't reward shitty service.