You can answer this either being within closed guard or putting closed guard to use. I find it diffucult to say what is right but find it easier to pick up on mistakes & figuring out the way I should act in closed guard or use it. Please answer as many as possible it'd be very helpful to myself & hopefully others. Within an opponents Closed Guard Do make sure that if you are looking to stand up in someone's guard you should control & pin one of their arms to their stomach area & step up on the controlled side to prevent sweep attempts. E.g. Pinning their right hand on their stomach you should look to step up with your left leg first. Don't post your arms out straight as this will allow your opponent so attack with an array of elbow joint attacks & also take your back. Using Closed Guard Do make sure you have control of at least one part of their body or gi. Leaving an opponent free to move if you lay back in guard will make you look as if you are asking to be passed. Don't leave your legs crossed too low as it will be much easier for your opponent to open/break you guard & then pass. Looking to break their posture by keeping your legs up high & not giving them room to attempt guard breaks. I'm by no means an experienced grappler but I think if I can look at others do's & don't I can hopefully piece together a better closed guard game plan.