Tap the menu icon.

Tap Mail.

Slide your finger right starting from the left edge of the display.
Tap the required email account.

Slide your finger down the display to retrieve new email.

Tap the required email to read it.

You have a number of options when you've read the email:
Reply to email, go to 5a.
Forward email, go to 5b.
Delete email, go to 5c.

Tap REPLY.
Write your email.

Tap the send icon.

Tap FORWARD.
Key in the first letters of the required contact.
Matching contacts are displayed.

Tap the required contact.

Tap the send icon.

Tap DELETE.

Tap the home icon to return to the home screen.