I started with just 0.01 bitcoin but will increase my volume when the price of bitcoin drop.
You can increase the trade volume now itself to 0.01 to 0.03. People will comes with the high amount as well. If you can set the maximum amount to trade with you accordingly.
Yobit, karken and localbitcoins would be right place to choose for trading. You can make decent income trading than other options, risk factor also less than other ways.