Men love girls with the right kind of confidence. Stay relaxed and don't approach him in a flirtatious manner. Best way is to simply speak to him as if he were a client of some sort. Ask him about general every day life to get to know his likings and surroundings, this way you can strike up new conversation. Try and keep cool about him, don't let him know your interested unless he signals that himself toward you. I'm sure you'll be fine! Good luck and hope you get your guy

Thanks Janey, you're right. I think I'll just treat him like I do to any other people at the sailing club, call him up to sail, talk about sailing, sail together, that's all, if we get to talk about other stuff, great, if not, let it be that way.