find some plans for thursday or friday then call whenever you want. Good way to have her not flake is to get her intrigued in what you guys are doing. Like say you wanted to go play ultimate frisbee at the park. Don't tell her hey we should play ultimate frisbee at the park
tell her alright I found something awesome for us to do on friday when you come I'm going to need you to wear sports clothes and a helment.
Her: what are we doing?
you: I guess you will just have to come and see now won't you?
this gets her imagining a date with you for long periods of time. Her imagination is better than anything you could ever tell her.
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