
This is the basic exercise for the biceps and one I'm sure you all know
Begin with the dumbbells by your side palms facing inwards,Start to lift the dumbbell up to your shoulders whilst twisting your wrists so that the palm ends up facing your body, pause for a second at the top and then lower slowly.Do not use your body weight to throw the weight up there if you have to do that then the weight is too heavy.Keep your elbows by your side.Use a weight that you can just do 10 reps of,then do 3 sets of 10.
The barbell curl is exactly the same as the one above only with a barbell so seeing as your lifting this one with both hands you can up the weight a little.Same movement,elbows by your side,lift the weight up then slowly back down.Do 3 sets of 10 reps.
The Hammer curl is the same as a normal dumbbell curl but you do not rotate the wrist hence it looks like you are making a hammer action with the fist.This exercise works the width of the bicep and creates a slightly different look for the muscle.As usual 3 sets of 10 should do it.
The Preacher curl is the best exercise for developing thick biceps with a high point which gives a dramatic look of size and width.You need access to a preacher bench for this one but most good gyms will have one.Take a seat at the preacher bench then when ready and the weight is right for you lift the bar up to your shoulders,hold briefly then lower slowly,Do 3 sets of 10 reps.
This one is a killer so maybe leave it till last so that you don't run out of steam half way through your workout.