Hello . .
Knee sounds can be normal . .unless associated with trauma or symptoms .
Meanwhile you should avoid movements which produce those sounds such as sitting on floor , sitting cross legged , squatting , sports such as badminton , running , heavy gyming , etc . .
Next Steps
If symptoms persist after avoiding . .Get ur self checked by a qualified doctor
Health Tips
Avoid sitting on floor , in squatting position . .
use normal chair / western commode