F Chromatic Scale
Place your first finger on the first fret, 6th string. Pick that string. Then play the second fret with your second finger, the third with your third, the fourth with your little finger.
Now place your first finger on the fifth fret, 6th string. Lay your fingers across the strings as before.
Move your first finger to the 9th fret and do the same.
Don't let all of my talking confuse you. Just let each of your fingers have a fret as you play this.
When you get this down, try going backwards. Try this on the 1st string and it will also be F Chromatic.