The 2nd and the 3rd person who noticed

The meeting between the Swift Corp representative and Zeus Company was resumed after lunch. 

They had to go back to the Zeus Company building, but this time, Caroline excused herself to go back home, and wouldn't be joining the meeting as she had something planned in mind.

Before she left, Caroline turned towards Vince, "Director Vince, do you have dinner planned tonight? How about you have dinner in our house tonight?" suggested Caroline. 

Stephen looked pleased with Caroline's suggestion, "Yes Director Vince, how about having dinner in our residence after the meeting is over?" Stephen seconded Caroline's suggestion.

From the sparks that were shown in Caroline's eyes, Stephen could guess that there was something that was brewing in his wife's mind. 

As they were already married for years, Stephen could read his wife perfectly. He knew Caroline had taken an interest in Vince and Stephen also had the same favourable impression on Vince.