Computer lessons please

I'm playing with my husband's new Apple Mac computer and haven't the foggiest what buttons to use. I've been trying to copy and paste, I finally found a command at the top of the screen, and Cathy has told me to use the Command button and C or Command button and V to copy and paste, so I'm going to play around.

Any other hints on how to use a MAC?  It's an odd one for sure, but I guess I could get used to it. 

OK, I've figured out how to copy and paste, but I can't get the links like the one below to work in the thread.

http://www.picturesofengland.com/forum/Off-Topic_Chat/1297 

Hi Sue, first of all, my compliments to the hubby, a good choice ;).

If you know how to copy and paste now, it's no different to PC as far as the links in the thread. Paste the link text in the message window, highlight it and then click on the link icon at the bottom. Paste it again in the 'Link URL'  field and give it a title (optional).

This is a useful list of OSX keyboard shortcuts.

Thank you Maria.

It's late (for me) right now, so I will check this out tomorrow.