1. Try to play every day.
2. Practice for at least an hour when you can.
3. Play for family and friends when you have mastered a piece.
4. Practice with no interruptions or background noise. You will concentrate better.
5. Listern to yourself, don't just play the notes.
6. Use your playing for relaxation. Don't try to play when stressed.
7. Take your recorder on vacation to a lake, forest, desert, mountain . . . . and play. You'll be surprised at how good they sound outdoors. If you have a decent wood recorder, get a cheap plastic one to take with you.
8. Don't play your recorder while taking a bath, shower or swimming.
9. Don't practice at 4 AM in an apartment building.
10. Bathroom acoustics are excellent. Ever notice how good singing in the shower can sound? Play in the bathroom (but NOT while showering). Remember to sit erect and not slouch for good tone.
Last and most important - ENJOY!