LG AS740 - Manual (Page 115)

114 Gmail TM
Starring a Message
You can star an important message or conversation to make it easy to
locate again. To view just conversations with starred messages, see
“Viewing Conversations by Label” on page 115 and view the Starred-
labeled messages and conversations.
To star a message
▶ When reading a message, touch the star in its header.
OR
▶ When viewing a list of messages, touch the star to star the
newest message in the message.
To unstar a message
▶ Touch its star again.