Those hoodlums didn't notice him and Yan Liqiang acted like he didn't notice them either and just walked past.
The capital city wasn't a completely unfamiliar place to Yan Liqiang. He knew that in a place like the capital city, those hoodlums had deep connections behind them. Most of them would be the eyes of different levels of government as well as the wealthy. Even the Emperor had some eyes like this.
If these hoodlums didn't notice you on the streets, it pretty much meant that no one would notice you in the capital city.
It seemed like his image change was very successful this time. Yan Liqiang laughed to himself and kept walking ahead while munching on his flatbread.