Going from E-2 to E-3, is based on a few criteria, time in service, commanders decision, MOS evaluations. Do the best you can in your MOS, keep uniforms neat, positive attitude, obey and follow orders, do a good job in your MOS, learn it, most units have a company roster, and ranks that go with each position. Sign up for schools, take correspondence courses, study and learn your Mos, and skills involved. Be sharp, haircuts, uniforms, boots,etc... Be aggresive in yor job performance, stay out of trouble, being a E-2, you probably haven't been in army long, just be a good soldier, listen to NCO's and officer's, learn your MOS, do a outstanding job, good attitude, take military and civillain classes if you can, hang in there, I was in the airborne infantry, and made E-3, right after, basic, AIT, and jump school, after ranger school made E-4, got out as a E-6 in 7 years, only because of job opportunity. Was on the E-7 list though. Look sharp, be on time, learn your MOS, go to Mlitary schools, good luck to ya!