Good/Well
Quick Tip:
If it's something you
DO
, use "well."
Longer Explanation:
Use "good" to describe a noun:
That’s a really
good
song.
[describing the
song
]
He's a
good
pitcher.
[describing the
pitcher
]
Use "well" to describe an action:
He sings really
well
.
[describing
how he sings
]
He pitches
well
.
[describing
how he pitches
]