Well guys, I grew some balls. (advice)  I asked the guy I like for his number today. He said sure, typed it in my phone, then said "have a good weekend" and walked away. My friends say I'm over thinking it but I think at by walking away it's a pretty clear "not interested". My friends told me to wait a few days and text him. But I'm skeptical. Advice? I'm a freshman and he's a sophomore by the way.