OK, it's a button on the mini-map. so, I jumped in que and waited and waited and waited. I waited for like 20 Min's and nothing. I finally found some guy who stumbled on area I was in and I saved him from certain death so he helped me finish the mission I was on.
What Happened with the Que.
Were you queuing for a flashpoint or a planet?
No one queues for planets, pretty much all quests on the planets are solo-able, with the exceptions being the heroic ones. In those cases, people ask in the planet's general chat.