Sharp AQUOS Crystal - Manual (Page 219)

Messaging and Internet 210
5. Specify whether to receive news and other information from Google Play, and then touch .
6. After your phone connects with the Google servers, select the items you would like to sync with
your phone and then touch .
You are signed in to your Google account, and you can access both of your Gmail accounts
from the Gmail app.
Switching between Gmail Accounts
If you have more than one Gmail account set up, you can switch between them in the Gmail app.
1. From home, touch > Gmail .