Iranians are very warm and congenial people. They are known for being friendly, hospitable, and generous. Take your time in Iran. Make friendships with Iranian girls and boys for these may last a lifetime.
Check out the bazaars, tea houses, and courtyards, but be careful when in the company of Iranian girls, especially. You see, Iranian girls have to conform to norms. Iranians recognize that they have two separate identities.