I recently took a sales call from a software company out of Austin, TX.  The salesperson reminded me of an important lesson.

His pitch was pretty good.  He started with his value proposition, asked me a couple of questions about my business and related the benefits of his product to my situation.  His descriptions were clear and reasonable.

Then I asked him about living in Austin, TX.  He loved Austin, and this led to his fatal mistake.  His tone and delivery changed.  The passion he had for the culture of outdoor activities and music in his city was palpable even over the phone.  The contrast between the description of his city and his product was clear.  One evoked passion, the other did not.  If you are not passionate about what you are doing, it will show so skip the acting classes.  Find something you care about and do it well.