When it comes to bicep training, building muscle is pretty simple: Pick up weights and put them down. As long as you have good form, your biceps will grow, and you'll have a set of sizeable arms in no time.But taking it to the next level can be a lot tougher. It a little bit more expertise. That's why we're bringing you these next-level bicep training tips. They'll help you gain noticeable size and definition in your arms.Scroll through the gallery to get the lowdown on these little-used gym hacks. When you start ripping through your shirtsleeves, don't say we didn't warn you first.