How can I achieve a professional finish when taping drywall joints?

To achieve a professional finish when taping drywall joints, follow these steps:

1. Apply a thin layer of joint compound over the joint.
2. Place the drywall tape over the joint and press it into the compound.
3. Smooth out any excess compound with a drywall knife.
4. Apply a second layer of compound, feathering the edges.
5. Sand the dried compound smooth before painting.