Again if you are using a shared computer or in an internet café, log out of any services you are using when you are finished.
This also applies when you are away and using your own devices. If your device gets stolen then if you have all the security hints enabled in this book (2-step verification) then they shouldn’t be able to get into your accounts.
If for any reason you cannot follow all these tips then your 2 step-verification will protect you up to a point. Somebody may see what you have been doing while you were online but what they can do with that information is limited. They will not be able to login to your account later and wreak havoc.