Re: how do I email a photo
Assuming you have set up your email account on your android phone, follow these steps:
On your phone, go to Photos, touch, the photo that you wish to share. Click/touch "Share" icon from the icons that show up.(Attached at the bottom is the image of share icon). Sharing apps available on your phone will come up. For example, if you have installed the Gmail App, Gmail will appear. Choose it and send email(assuming you have set up gmail account on phone).
Alternatively, you can also use Bluetooth to send files from your phone to the computer, if both are in close proximity.

- share icon
(To set up an email account on your phone, first download the particular email app from Google Play Store on your phone. Gmail app comes packaged with many Android phones, that is, they are already installed. Then, on your phone, go to Settings >> Accounts >> Add Account to add an email account by choosing that app from the list. Enter full email address, follow the Next instruction step by step like filling password, complete the process).