1) You do variations of 4 main lifts (usually bench press, overhead or push press, back or front squat, sumo or conventional deadlift)
2) You use a weight that is substantial, but sustainable on a daily basis. Essentially, even doing the last set you should have some reps left in the tank. For example, if you're doing 3x8 you do it with a weight that you can lift 12 times (usually 70% of 1RM), so by the first set you can still do it 9-10 times, even with short breaks between sets. Remember - you have to be able to recover while doing it daily. Personally, I have to go a bit lower in weight on the deadlift to do so (let's say 65% instead of 70%)
3) You do 2-3 "feeler" (or warmup) sets. For example, if you would use 60kgx8 on the main sets you can do 20kgx5, 40kg x3. The point is to be 100% ready by your first work set but not fatigued at all
4) The HFSW part should take about 35-45 minutes, depending on how you're feeling that day and equipment changeover times. If you don't have to move stuff around you can probably do it in 30 minutes.
5) You can throw some minor work in between the sets (Active rest). I do rotator cuff exercises. If I'm not having a bad day I will usually have no more than 15 seconds of rest (usually consisting of walking between stations and drinking) between the main sets and AR exercises. Without AR that may be 45 seconds.
6) By the end of HFSW you should feel amped up, but not tired.
7) If you start with an upper body lift, the next is lower body (so bench-squat-OHP-dead, for example)
I hope I covered all the main points.