So I was in the bus after school and it is not like a typical American school bus where everyone sits down. Its after college and we take a public bus to get home. Me and friend were inside the bus where I suddenly noticed this girl talking to her friends and she starts to look at me occasionally and we would make eye contact for like 2 seconds. She is with a bunch of guy friends and it is really squeezy. I was somewhat in a close proximity to her like an arms length away. I dont want to interrupt her but yet I want to approach her. However the guys might be a cock block so I hesitated to do so. I'm semi introverted so I tend to overthink a lot. The bus was also quite noisy so I didnt know whether it was a good setting to approach. I also didnt know what to ask her or what was a good opener so we just kept staring back and forth. As I'm writing this now, I realise what I could have said to her as an opener but now it is a bit too late. The girls are Asian which makes the game even harder as they are very sheltered and not open. Any advice?