Focused( Unearthed Arcana, p. 88)
You can keep your attention on a task despite many distractions; however, events in the background pass you by.
You gain a +1 bonus on Concentration checks. Drawback: You take a -1 penalty on Spot checks and Listen checks. Roleplaying Ideas: Characters with this trait often seem singleminded or even obsessive in their focus on a specifi c task.