Congratulations, and good luck!
Keep your answers succinct and to the point, until you
grow practiced at focused rambling.
Smile as you speak, and they will hear that.
If you don't smile, you'll sound boring and monotonic.
Don't be afraid to laugh, chuckle, etc.
I.e., sound as if you're having a hoot of a time.
Mention the RWVA by name and website every segment.
If you've an overly talkative host, it is your duty to but in
and dominate the dialogue. You're the guest, and people
have ostensibly tuned to hear mostly you, not him (else
he wouldn't need any guests).
Boston