When performing a freestyle swim you should position yourself in the water like a long, tall and horizontal torpedo. To do this, concentrate on the alignment of your head, neck, spine, and legs. Your head should be angled down, or slightly in front, looking at a 45- degree angle with chin tucked in, so it does not protrude forward. Pull up the legs and engage the core as if squeezing into a pair of jeans; this keeps a straight body line and helps reduce drag resistance.