It's good to keep your information up to date so that colleagues are able to find and reach out to you. Keeping your Tags accurate may even get you added to smart groups, ensuring you receive relevant notifications.
To update your details:
Click on the your name in the top right-hand corner.
Select My Settings from the drop-down.
Fill in/ amend the details listed in your profile.
To update your Tags, click the Edit button on the right-hand side of the page. Depending on how the administrator has set Tags up, you may or may not be able to amend specific Tags.
Click Save.