Should i avoid her or talk to her?

I jus met her and i kind of chocked while tryna make a convo. I was walking past and she smiled at me so i just went for it. I got her number tho n i txted her the next day. She denied my invitation to hang out cuz she was busy but she did say next time. After a week i txted her again just saying hey how u been. She didnt txt me back tho and i guess i got ignored. I think i might see her on tuesday. Should i just avoid her or say something to her if i see her in school.