In each business you need to build up trust. Show yourself and your talents and not others. You are marketing yourself. For this you are at LinkedIn. A real company even need not to read this, they know how to promote their products and services, but here at LinkedIn are so many amateurs in selling which need a lot of help.
Trust cannot get build up, when you
- are hiding yourself in the anonymity of the Internet
Do you have something to hide? In such a case you should not open a business. People, which hide something are not trustful
- are you not showing your real face
it does not matter if you are young, old, pretty or ugly. It only matters if you are making a bad impression by having no picture, a logo, a picture of someone else, a landscape shot, a graphic, a cartoon or something else, which is not showing your real face
- are thinking that LinkedIn is the same like Facebook
If you are proud that you have something produced, which has hand, legs and seems to be functioning, then present your baby at Facebook.
If you like to present your pet, than post it's picture on Facebook.
If you are a fan of a movie star or some other celebrity, then post it on Facebook.
Nobody makes business with a baby or an animal. You like to make business, so post your own picture.
- are spamming
There is a golden rule at the Internet: "Don’t buy from spammer, you’ll get scammed". Spammer getting easily identified. They are posting every day or every (few) hour(s) the same content, have not enough money for buying a full functionally keyboard (mostly they have no keyboard, which has normal letters for typing - the capslock cannot get turned off) or some keys are repeated many times
- not describe your product or service, which you like to sell, in full
As better you are describing your product or service as easier it will be to find customers for it. A "genuine" description and a message "contact me for more information" is not really something, what makes your posting interesting
- promote any fantasy earnings for your reseller
If you promote what others can earn by selling your product, than you show only that your product or service is not able to sell at the market. Pyramid systems are at the most European countries forbidden by the law already. If someone has a good product, where he can earn a lot, then he will not share it at the Internet, because as more are selling this product as more the price and the earnings are going down
- only can get contacted by using Skype
The world is divided into 24 time zones. Don’t waste the time of others, nobody will wait until he can reach you. You like to sell, for this you have to take care that buyers can contact you in a normal way and during you are sleeping too. You are the seller and not the buyer! You need to find a customer, which like to buy from you. The buyer is the king, not you!
- links and email addresses, which are written at your profile, are not working
In such a case interested people cannot contact you and are thinking that you even cannot pay the domain and/or hosting fees
Real companies need not hide themselves, they are proud about their name and success. Their name is their trademark and they are not hiding themselves in the crowd.