I suggest that using a usb connector will be the easiest if you are a bit unconfident. Test out the one you have by plugging it into the phone and the puter, switch on the phone, say a brief prayer to the small god of wires, then have a look at what is showing up under 'My computer'.
Ins'allah (as we say in lancashire) you will see an icon that has appeared that says something like 'LG whozamagig'. Click on this to open it, and you'll find a number of folders.
Don't be afraid about clicking on 'the wrong folder'. You need to discover which folder your photos are in and usually this means a little clicking backwards and forwards.
Once you've found your list of photos, you can click on each one or select all of them, then choose 'copy' from the toolbar (might be hidden under edit>copy).
Then navigate to 'My pictures' on your computer and choose 'paste'.
If when you connect your usb you don't see any icon appear, it might be worth planning a trip to the phone shop and asking them if you have the correct cable for this task.