The simple answer from what i gather is you can't, Because as far as i have read/seen, The N8 does not have the necessary hardware installed to support NFC, As in, There is no NFC chip inside the N8, So NFC support will never happen on the N8.
Recently I noticed something in my Nokia N8-00, after I downloaded some applications on my PC and then sent them via bluetooth to the N8-00, I pressed and hold menu button to show run applications and I found that. (see the attached picture)
As far as I can see and find there is no NFC in an N8 nor an E7. However the closes thing i can find is a proximity sensor. thats as close as you will get. Here is the full list of spec's according to the developer site.
2011-11-27 13:36 - last edited on 2011-11-27 15:15 by haZey
r u update your N8-00 from PR1.0 to symbian anna?if yes how u did please inform me
Moderators note: We have removed your email address from this post because Nokia does not recommend any of the users to share personal information on the discussion board for security reasons.
2011-11-29 9:47 - edited 2011-11-29 9:48
yes im actually confused,i too saw that nfc icon on my n8,and when you check out the
accessories available to see the bh505 headset which works on nfc and also the nokia 360 wireless speaker,so is it possible that n8 to wil get nfc,or is it just built in....