Dont go beyond the Khyber Pass. The area is declared Tribal.
Never pay the price the shokeeper asks. Always bargain for a better deal.
Unique Suggestions: If you still insist to go to see the famous Khyber Pass, Do ask the local authorities so that they should arrange some local guides for you. The best way to see that area is to get on to the Khyber Pass Train that is run every week from Peshawar to Torkham exclusively for tourists. Great Experience.