Been there last week.
Very informal, lots of paper work to fill out.
We measured for and ordered our uniforms.
You get your PE form ( if you did not get it in the package that came with your acceptance letter)
need you to have a criminal background check done, some need a drug screen( ours did not at this time)
Look up your immunization records! You need 2 MMR's, polio, tetanus, Hep B series and a two step TB test.
You should get a schedule( we got both summer and fall schedule), a book list.
We also had alternative students on the waiting list at our meeting and two of them got bumped up to accepted status! ( we only had 20 transitional students accepted total.
Hope this helps.