I'd had a high school reuion party at Hongdae, but the party was over too early. So, some of us decided to drink more at a park located in Hongdae. At the park, there were a group of girls sitting on a bench, holding a bottle of beer.
The number of them was 4.
There were 4 girls.
And, they were mostly pretty, so we decided to go there. But,
The number of us was 3.
we were 3 guys.
How can I describe how many people are present here or there?