Well, to start, you have to be aware of the consequences:
Lower Battery Life
Increased Thermals
However, there is an easy way to "overclock" your laptop. Some enthusiasts might not call this overclocking, but the end product results in a higher clock speed.
Don't worry about thermals too much. I have overclocked my Inspiron 11-3168 (which is passively cooled and has a 6th Gen, 4 Core Pentium N3710
So, here's what you do if you really want to 'overclock' your laptop.
If you have Windows 10,8, or 7, search for "Power Options"
Then, you will see some options for power modes.
Click "show Additional Plans"
Click High-Performance mode.
This will boost your CPU to a higher clock speed depending on how intensely you use your computer. It will boost a lot higher than maximum clock speed, and it really helped for me, as my computer used to be slow as crap. Now, however, it actually works.
Thanks, and hopefully you found this helpful.