If you own a recent laptop computer, it should be already equipped with a multi-card reader (Top right picture). First, remove the memory card from your cell phone. In most cases, this is accomplished by simply pressing, then releasing the card. It will pop out of the card slot so you can pull it out.
Before attempting to insert a memory card in your laptop or memory card reader, keep in mind that some very small cards require an adapter (lower left picture) in order to be inserted in a computer slot (center picture). This is the case of the MicroSD format and most MicroSD cards come with an adapter. Insert the card into the adapter and then, the adapter in your computer's card reader.
Windows computers will generally beep and immediately recognize the memory card and open a special menu asking you what to do with the files found on the card. Select "Open Folder To View Files" and your files should be right there, ready to save in your computer, print or email. If no special menu automatically pops up, you may also find your memory card's content in "Windows Explorer" under a name that includes "storage device" such as "Secure Digital storage device".
For Macintosh computers, I am unfortunately not able to provide specific instructions at this time. Please let me know if you can help.
(Illustration: A Sandisk card and adapter and an Acer laptop computer.)