How to get girls while on the go?

I tend to see attractive girls when I'm walking somewhere whether it be between classes in university or just crossing the street.

I don't want to use online dating because it is very sketchy.

Usually I have something like 2 minutes to approach a girl get her interested and get her number until I have to go since attractive girls always have to go in the opposite direction (i. e If I'm heading East the girl would be heading West when I'd notice her).

I obviously would want to get to know the girl first before starting a relationship, which I would do over text.

How do you suggest I do it? I don't know what to say, stuff based on the situation isn't always reliable and makes me come of as just friendly.
How to get girls while on the go?
Add Opinion