Expression of faith that there no other God but Allah and Mohammed (SAW) is the messenger of Allah
Praying the five obligatory daily prayers
Giving to the masjid and to the poor based on your wealth
Fasting during the month of Ramadan where a believer must not eat or drink from sun up to sun down
Going to Mecca in Saudi Arabia to visit the Kaaba and other holy sites in the footsteps of the prophet (SAW) and the Sahaba
Note: The 5 Pillars of Islam a.k.a. Arkan-e-Islam