1) entering the numbers
2) making phonecalls
3) Hanging up after the call.
For some reason, I find it easier to get to menus, internet, apps, etc, but when it comes to quickly making a call or hanging up on the touch screen or dialing the numbers, I always fumble.
I guess too much chatting, tweeting and facebooking and all's made me forget what the phone was actually made for...*hangs head in shame*