Dating websites march up single people that have decided to be proactive in their love life. It is indeed a perfect space to sell your qualities in the best way possible and most of all, knowing how to stand out from the rest of single people.
When you create a profile you have to be extra careful : post only the most recent pictures making sure they highlight your best qualities and careful with Photoshop ! Your pictures should reflect reality. When you will have to add your personal description, try to be as accurate and honest as possible but no need to write a novel either !
The important thing is to be able to write a good summary of yourself and your personality so other users can have an idea of your persona when reading your profile.