hand drag 3s:
1. find a roller type feature, stepover jump landings work well. having a roller that will pop you UP makes it a lot easier. the steeper the roller the better. I learned them on a spine type feature.
2. GO FAST. Go fast enough to send you like half way down the landing and then go faster. having more speed will give you more time to kick your feet under you. worst case you send it to flat or over rotate to 5. both options are fine.
3. Pop before the top of the roller. you wand your hands to be dragging at the top of the roller. if you pop too late you will miss your hand drag and crash.
4. When you pop reach for the snow near the tails of your skis while kicking you feet up parallel/above your head. this is the most key part of the trick. the harder you kick your feet up, the easier it is to kick them back under you. you might consider ditching your poles because grabbing some snow is key and poles can get in the way.
5. Do a backscratcher. you need to get your tips away from the snow so you don't catch them and throw off your rotation.
6. At this point you will be at 180 and fully corked out with your handing dragging the snow above your head. for the second part of the rotation, pull your hand back while kicking your knees through to get back on axis. then stomp it out.
Frontflips:
1. Do a backflip instead. No one actually likes doing frontflips.