As mentioned above, you have a wingman, her roommate, your friend, and a good wingman gets twice the result with half the effort (later replaced by a wingman), so you can make a lot of contact through the wingman, and even provide her whereabouts. Although this is a bit like bad monitoring, smart people already know how to take advantage of this convenience. And you can rely on her to find out the attitude of girls towards you and help you improve your relationship from the side, but it depends on whether this wingman is reliable.
Remember not to expose the sense of need. When men and women first get along, they all show a sense of no demand. After that, when they are attracted enough and have a good relationship, they can properly express your good feelings. Don't confess easily. Confession is only used after two people have ideas. Otherwise, it will be useless, which will make the relationship retrogress or even cold.
Never ask for contact information as soon as you come up. If confession is actually the horn of victory, then giving you contact information should be regarded as a sister's recognition of your "friend" status (roughly equivalent to putting a "can chase me" stamp on your ass), so as to ensure that you have something to say next, rather than chatting.
Give full play to your advantages. To tell the truth, boys are so secretive nowadays that chatting with girls or even dating is not a problem. But I didn't know how to give full play to my advantages and hide my shortcomings, and finally I was rejected by the girls. I know you always have something good at, so show it.