Don’t claim to be visionary. Don’t call yourself a thought leader. These are ridiculous statements that are nearly impossible to validate.
Only make claims you can prove.
You can claim that you doubled sales, but the claim will have much greater impact if your CEO is willing to be quoted saying that you doubled sales.
The more evidence you can cite, the better.
This does not just go for facts. It also applies to giving people the impression that you are a substantive professional.
If you just started a business and hired your first employee, take a picture of him or her, and post it online.
If you just moved into your first real office, take a picture, and post it online.
If you have a solid management team, put their photos and bios online.
Don’t ask people you do not know to take your word. Prove it.