提交订单付款的时候微信支付就可以了，然后在付款的一处选择零钱，不要选银行卡的，再输入指纹就行。
方法/步骤
1、首先选择你想要订的饭，然后点击“去结算”。
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2、选择在线支付才能使用饿了么红包，所以我们选择在线支付，然后点击下方的提交订单。
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3、在“在线支付”界面点击“使用红包”选项。
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4、可以看到你的饿了么红包，选择一个微信分享红包来使用，然后点击页面上方的“确定”。
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5、这时可以看到原价11块钱的饭菜只需在线支付9块钱即可。饿了么支持使用微信，qq钱包或支付宝支付，任选一种方式即可，然后点击确认支付。
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6、支付完成后，你将会获得一次发饿了么微信红包的机会，快将它发给你的朋友们吧。