In the event of a motorcycle accident, getting medical attention should be the topmost priority. If you are in a position to move, try to get yourself (and your motorcycle) to the roadside as fast as you can and then proceed to call the police or seek assistance from bystanders.
Assuming that you are not seriously injured and have not been taken to a hospital, you should take photos of your injuries and get the contact information of the other party and any witnesses available. While doing this, it is critical that you avoid admitting fault or apologizing to any person involved in the accident. What you say may eventually end up hurting your claim. It’s always a good idea to contact a capable motorcycle accident attorney to evaluate your case and help you understand your legal rights and options.