When making plans you will be given the option to tag FB friends. Friends that have Nightly will automatically be included in your plans. If your tagged friends don't yet have Nightly, you can easily invite them before you finish making plans and earn free stuff. Yasss.
Easy. You can cancel your plans by viewing the ticket, cancel, and make new plans. You can click the ticket icon under a user in the 'Hot People' view, or you can change your plans by clicking on the venue you want to go to instead.
Making plans pushes your profile to the top of 'Hot People.' If you want to maximize your ability to connect with other singles, make plans, and make them often! Make plans at the coffee shop you're at, gym, or the bar you want to go to tonight.
If you are single, all other users that fit who you are looking for can see your plans -- except for users that you have blocked. If your status changes and you are no longer single, you can update that in your settings, and all future plans made are kept completely private.
Once your friends have Nightly you can chat by clicking the message icon on the top right of the main screen. Then, click 'New Chat' and all friends that have Nightly will appear there. Select one to chat individually, or select multiple friends to creat a group chat. Also, carrier pigeons and soup cans.