I just came across the following article and liked it, it's called "6 Copy Tips That Sell And 25 Attention Grabbing Words". Here it is, maybe you find it helpful:
A lot can be said about what a good copywriter will write about depending on what type of material they will be of course writing over. One thing is for sure though, the following 6 tips have been used for years to improve response and conversion rates. So let's the start the show off here with numero uno:
1. Clarity - No matter how complex the product or the industry or how well schooled you consider your customer, keep the writing simple. Make sure your offer can be grasped immediately. Avoid marketing jargon such as "leading provide" and "synergy".
2. Benefits - People don't buy based on what the product does, but what it does for them. Convert your product features into benefits that are meaningful to your target audience.
3. Concrete Information - Describe your product's benefits specifically. Don't just say, "It saves me money". Specify how and how much.
4. Power Words - Some words suffer from being tired, overused, or vague. So look for more dynamic, specific alternatives. For example, substitute "industry specialist" for "salesperson." Or, offer a "free, no obligation consultation" instead of a "sales call."
5. Guarantees - Use testimonials and success stories. Stress your company's stability and long track record in the industry. Make customers feel comfortable, they need to know that doing business with you won't jeopardize their job security.
6. The Basics - Use clear, friendly, personal writing. Provide several ways to respond. Remember, you are talking to an individual person, so make good use of emotional triggers in your copy.
ATTENTION GRABBING WORDS
Successful direct-response copywriters have learned over the years to incorporate words like these to grab attention and motivate action:
Advice
Announcing
At last
Because
Confidential
Congratulations
Free
Guaranteed
How to
Introducing
Limited-time
New
Now
Proven
Revolutionary
Save
Secrets
Smart
Special Invitation
Success
Wanted
Which
Who else
Why
Yes