How do I enter friend codes and battle people on pokemon pear for DS?

I can do it on battle revolution but idk how on pearl, also how do I find my own friend code
How do I enter friend codes and battle people on pokemon pear for DS?
u get the pal pad by first entering down stairs in the pokemon center and talking to the first lady.
Reply:go to pal pad in your key itemmmssss!!!!
Reply:ok u open your bag and go to key items and go down to your pal pad and press regester friend or mix records
Reply:go to key items and find your pal pad... thats where you can find the info also would you like to battle or trade im looking for an ekans a mew and an arceus



email me your fc if u want to battle
Reply:Once you have obtained your Pal Pad, go into your key items and select Pal Pad. There, you can check you friends, register a new friend or check your own friend code. To obtain your Pal Pad, set up your Wi-Fi and go to B1F of any Poke center. They will then give you a Pal Pad. Hope this helps!!