In dealing with her more than a dozen sponsors, including Revo, NASCAR driver Danica Patrick told CNBC on Thursday she does not like to overpromote her brands on Twitter because she wants her 1 million-plus followers to know that she's really the one tweeting.
"It's all built around what's natural. And I stand my ground pretty hard [on promotion], especially with social media," she said. "When I first started on Twitter way back in 2009, I was really guarded ... with that stuff since it's an extension of my personality."
On "Squawk Box" Thursday, Patrick also talked about her new sunglasses deal with Revo. "They're kind of doing a revamp. So part of it is me doing a line." She said the new shades will be available this fall.
—By CNBC's Matthew J. Belvedere