Hi Admilson, this question is more appropriate for the ‘Discussions’ section of the Italki website or ‘discussões’

So others can help you, when you see an expression that you would like explained. Write down the entire sentence that you found it in.

Things like context and sentence structure can give Teachers, Tutors or Native speakers a better chance of evaluating a sentence for you.

I will try to help you anyway.

*Spend/ Spending  a little bit of your time

 *Spend/ Spending a little time 

Here is phrases you can use it in:

1)    Spend a bit of your time___

OR  Spend a little bit of your time___

OR  Spend a little time____

2) 2A) Exercising - 2B) Learning _ _ _ _ -

    2C) Volunteering - 2D) Networking Online 

3) Daily OR Weekly OR Monthly OR Regularly 

4) and you will become....

5) 5A) Healthy -  5B) Smarter - 5C)Feel Rewarded  - 5D) Popular 

Combinations

1 - 2A- 3 - 4 - 5A

1 - 2B - 3- 4 - 5B

1 - 2C - 3- 4 - 5C

1 - 2D - 3 - 4 - 5D

To understand this expression better, imagine that your day or an hour of your time is a whole pizza sliced into segments. “One bit of your time” would be a slice (bit) of the pizza. 

This is an informal way to talk about time.