当任何加了它们为好友的人在他们书中的位置或者附近签到，他们就会看到一条弹出提示，告诉他们有书券可用。
When anyone who has friended them on foursquare checks in at or near a location that's in the book they'll see a pop-up tip reminding them to check the book for coupons.
在这里，你可以将你的位置分享给你的好友、了解你的朋友(如果他们使用了地点服务)的位置，并且发现你附近的新地点。
From there, you can share your location with friends, find out where your friends are (if they're using places), and discover new places near you.
Aloqa中一个更为有趣的功能就是它可以发现附近时候是否有你的Facebook好友。
One of the even more interesting functions in Aloqa is its ability to find your nearby Facebook friends.
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