Clicking on the minimap icon will show this window with an overview of all rolls. You can also become or search for a masterlooter and check the current masterlooting session in the lower right corner.
Giving away loot
Looting items that you (or someone else) might be interested in pops up a standard roll frame where you can choose if you need it or not.
You get a handy little overview of all the things you should do, like asking for, trading, awarding and voting on loot.
PersoLootRoll
Roll on items when using personal loot, in random or organized groups, incl. masterloot mode.