so i met this girl at my college and talked to her for the first time, it was quick and i walked with her to class and she introduced herself to me as she went to class. the next time i saw her, she was sitting in the table next to mine so i decided to talk to her. i slightly and quickly touched her hair then brag about why her hair was curly cause i thought she would like better in straight hair. so "blah, blach, etc" she went on with about her hair. next i teased her a little about her shoes and by surprise she was quite open in talking to me. the next time i talked to her, i was lucky to get her number and took a photo of her too. the reason why i got her number was she invited me too her hangout that following sunday night. i didn't go and text her i had to work cause someone called out that day, knowing that i had to work that day already. she didn't text back. we talked the next time, and she sounded like her usual self. later into the conversation i invited her for a drink that friday. she hesitated and said she'll check her availability (apparently this is a beginner's mistake). And of course she didn't go b/c of ... watsoever etc.
So my question is.. how could've i taken the situation? I'm open to any suggestion. Like I said I'm a beginner at this.