TIPS 
Lick your lips before you begin playing.
Try playing by ear, learning from the music that inspires you is a good way to know what you like and what you wanna play.
For a bluesy sound, shake your head while you play.
CARE
The harmonica is one of he most portable instruments. It's pretty durable and easy to tune. But it's also important to keep your harmonica clean. After playing, hit the harmonica mouth side down against your pant leg to remove excess slobber. When you play the harmonica it's expected that it will get a little wet. The moisture can get locked inside your harmonica and grow mold. Excessive heat can also cause a harmonica to warp and bend.
