I enjoy swimming and now we want to go together only he can't swim. I said that I will gladly teach him next week when I go but how do I go about teaching him, he's 21. I'm don't want to just chuck him in the deep end haha.
well the best thing would be to go to the sea, its easier to swim in sea water because buoyancy is better... well the posture is the best start, show him how to hold his body while swimming, breathing is essential (more air in the lungs means better buoyancy even in swimming pools) so he has to coordinate his movements to his breathing, thats basically it, oh one more thing, a simple exercise is using his arms like wings and lifting his legs off the floor, that can teach the gist of keeping afloat and he doesn't have to lay on his front to try it ;)
by partner i assume u mean bf/gf so you could just physically show them and tell them what to do starting with simple things like how to tread water or lay on your back..while helping them
throw him in!! if he cant swim he bound to drizound