2 Scenarios

Have thought of 2 descriptive paragraphs some time back in March, but only got down to typing it out now. Feel free to make a guess as to what the 2 scenarios refer to. Sorry, no clues/hints and the paragraphs are meant to be similar for a healthy level of ambiguity. :)

Scenario A
Entering the premises, the visitors usually go about their businesses quietly, coming and going when they have achieved their objective. Most will refer to the electronic panels for their ideal results. Most will acknowledge each other's presence in quiet manner, though once in a while, you will hear someone greeting a familiar face, a couple of visitors chatting relaxingly over similar interests or pointing at familiar sights. Electronic voices acknowledge the visitors' efforts while a slip of printed paper records down the important details, and everyone leaves knowing they will be back for more.

Scenario B
Entering the premises, the visitors usually go about their businesses quietly, coming and going when they have achieved their objective. Some will refer to the electronic panels for their ideal results. Most will acknowledge each other's presence in quiet manner, though once in a while, you will hear someone greeting a familiar face, a couple of visitors chatting relaxingly over similar interests or pointing at familiar sights. Nonchalant faces acknowledge the visitors' presence while a slip of printed paper records down the important details, and everyone leaves knowing they will be back for more.

Got it yet? :)