https://www.theverge.com/2018/5/9/17336642/hq-trivia-friends-sharing-answers-contact-list-upload

Popular daily quiz game HQ Trivia is adding a new feature on Friday that might make winning a little bit easier. If you decide to upload your contact list into HQ following Friday’s update, you’ll be able to see which of your friends are playing the same match as you and even what answers they pick mid-game. This new feature builds on a previous social-focused update HQ made back in early April, when the company first launched an in-app friends list and let players compare high scores with one another.

The new friends feature is pretty straightforward. If you choose to connect your address book and add your friends who also play HQ, you can see who is playing during an active game. From there, you’ll see the avatars of your active friends next to the answer of a question. Users can then place their own avatar next to their answer of choice, which will make it viewable by other friends in the game. HQ says it’s also launching a Nearby Friends feature to let players know of new players who aren’t in their address book who might be playing in close proximity.