Next time dont ask a girl out.
Take her out.
Just surprise her and say, I have two tickets for the movies. My cousin just cancelled, wanna go, like in 45 minutes?
Wave the tickets in her face, brush your teeth and smell nice.
easy as that.
Or just get a shitload of sushi, start eating nearby her and ask her over for a semi spontaneous picknick. or what ever.
just surprise them.