How to Sign Out from Sessions on Google Gmail Account

It is good to know all the activities going on through your google accounts.
You never know who might maliciously get into your account at any
time. Most of the time, there is a password autosave feature in most
of the browsers we use.
We mostly know the logout feature without having concern on the other
part of it.
Okay, i have got a trick to make you safe from now on. Gmail is all in
one account provided by google to ease what we do online. And it is
your duty to take care your right to privacy and safety.
Below is a step by step procedure to Sign Out from Sessions on Google
Gmail Account:
step 1:
log into your GMAIL ACCOUNT.
If it appears in mobile version, switch to classical or desktop mode.
Step 2:
scroll to the bottom of it, you will see 'Last account activity: x
minutes ago on this computer. Details.
Then click on details.
Step 3:

Successfully signed out of all other sessions.
Note: Users can log in again, if they know your password or have it
saved on their computer. If you're concerned about someone using your
account without your permission, please change your password.