In this how-to video, you will learn how to tune a ukulele with Ukulele Mike. This will be useful if your ukulele has been in a warm or cold setting for a while. The strings are tuned to G, C, E, and A. The G string is known as string 4, C as string 3, E as string 2, and A as string 1. String 4 is the one closest to the top when held. Start with string 3 and tune it to about where C is. You only need to know how this note sounds. Tune string 2 by fretting the fourth fret on the C string. Tune string 3 to this note. Tune the G string by fretting the third fret on the E. Tune the G string to this note. Lastly, tune the A string by fretting the second fret of the G string. Tune the A string to this note.