1. From the home screen, tap the Google folder.
   
2. Tap Gmail.
   
3. Tap the Gmail menu icon.
   
4. Scroll to, then tap SETTINGS.
   
5. Tap the desired account.
   
6. To add a signature to outgoing emails, tap Signature.
   
7. Tap the Signature field, then enter the desired signature.
   
8. Tap Done.
   
9. Tap OK.
   
10. To adjust syncing options, tap Days of mail to sync.
    
11. To add an account, swipe down from the top of the screen to access the Notification menu.
    
12. Tap the Settings icon.
    
13. Under the Device tab, scroll to, then tap Add account.
    
14. Select the desired account type and follow the on-screen prompts. 
    
15. To delete an account, tap the desired account type.
    
16. Tap the desired account.
    
17. Tap the Menu icon.
    
18. Tap Remove account.