“Customer first line engagement on the fly”
I can actually explain this one, when I worked at B&Q the phrase we used was ‘hi on the fly’, basically it’s a way of telling you to ackowledge people, if you are busy and walking past them to get where you are going, then you just say hi as you pass them by.
So I guess in the scenario with a customer, it’s a simple hi or hello, without scaring them off by asking if they need help, they are much more likely to respond to this.