Dry socket typically manifests itself within the first 3-5 days after tooth extraction. No smoking/sucking/spitting and restful activities will dramatically reduce the chances of developing pain.
When you get your tooth pulled you have a hole that wind is not allowed to make contact with and if it does it turns into a dry socket which a dry socket is a blood clot. Keep your mouth shut :)...
After a wisdom tooth extraction, slight bleeding is very common. However if it continues after a long period of time (10 minutes-1 hour) see your dentist or a healthcare professional because you may...
Keep the gauze on your gums for up to an hour, with good pressure. Be gentle on the clot that forms under the gauze, do whatever you can not to dislodge it - don't suck, eat hot foods, move it, play...