If you have any skill or expertise you can offer it to other members and if they are interested to use your service, they will pay you for that. Also, you might want to change the thread title because it makes you sound like a scammer lol. Put it in a more appropriate way like "How can I earn money here?". Just a suggestion.
Thank you for the heads up.
Similar to having an ordinary job, I expect payment after my work is complete. I require escrow if I am dealing with someone who has a newbie account or has a bad reputation.
About my skills, I have done web design, web security testing, promoting, writing, basic coding.