Watch the Travis Lead online guitar lesson by Walter Broes from Rock, Billy, & Boogie Guidebook
In a lot of cases, you'll hear Travis-picked parts used for rhythm and backup. Playing finger picked leads doesn’t have to be a lot more complicated though; simple variations of your rhythm pattern will get your there, or chord shapes/inversions played higher up on the fingerboard.
The triplet lick in the second part of this example is a classic, and though its origin isn’t in rockabilly music, it’s a lick that pops up often and isn't that hard to play. Very flashy and effective, and a great “panic button."