Go to the GKO website online and volunteer to be activated with some Guard unit. Once you are title 10 active you can transfer directly to active duty at the end of your Guard mission, and it will be seamless with no loss of rank, TIG, etc. I have seen them take Guard soldiers as high as E-7 this year with no rank reduction.
If you are an 11B, 13F or 19D they might be especially happy to see you.
If you want to deploy, doing back to back Guard missions, even those stateside, can be a good deal. Activated Guardsmen often rack up more allowances than RA soldiers, for example single soldiers in the barracks can collect full housing allowances, even if they don't have any housing expense at home.
Also, the regular recruiters are generally pretty clueless about this,you'll need to do research to learn more about it.