A 'little bit' means a small amount or a slight degree of something. It describes quantity, feelings, time, or change in a mild, modest way. People use it to soften requests, give small doses, or hint at slight limits.
Every moment of one's existence one is growing into more or retreating into less. One is always living a little more or dying a little bit. Norman Mailer
Most truths are so naked that people feel sorry for them and cover them up, at least a little bit. Edward R. Murrow
If I am to be known for anything, I would like it to be for encouraging Canadians, for knowing a little bit about their daily, extraordinary courage. And for wanting that courage to be recognized. Romeo LeBlanc
A little bit of experience is better than a barrel full of knowledge. Finnish Proverb
Marriage is a little bit like buying melons, you need a little luck. Spanish Proverb
A little bit of powder and a little bit of paint make a woman look like what she ain't. American Proverb