Following are the steps to attach photos or files in your email and send it to your friends. I will use Hotmail in this case.
Step 1:
In Hotmail interface, select New and compose your email. Select File from the Attach.
Select Attach in Hotmail
Step 2:
In the following interface, click Browse to select the file or photo you would like to attach in this email.
Hotmail Attach file interface
Step 3:
Select the file to be attached.
Select file to be attached from the Choose file Interface
That is it! It is that simple!