As a 24 year old male using these sites I offer the following observations. Professional photos are a turn off. I want to see the real you so a clear, well-lit photo of you smiling is all that is required. Take it outside on a bright day but stand in the shade. Don't pose with a large glass of wine or include your holiday snaps. Direct the prose to the opposite sex, not your friends - eg men think of caring as nosey and fiesty as argumentative. Don't brag about never cooking or ha...