I'm army (national guard) I don't know much on Air force except the pt tests are ridiculously easy (that's what I heard at least), females can have pony ties, only officers can fly and the rest I'm not sure but I tend to see them at the security entrance at the base I go to for drill.
It also depends on if you want to know bout the basic training, your MOS possibilities, and if you want to be active, reserve, or NG

My biggest tip to you is who ever your recruiter is be careful with what they say. I got a strait foreword one. Others act like car sales men at times XD

Not a female.

1) the USAF is the best branch for after military employment. (depending upon what you take as a AFSC)

2) Understand that the Air force comes before all other things, to include family.

3) Understand that General orders such as 1A make little sense other than you are a number, not a human being. (No sex, no alcohol, no porn.) These orders will likely be applied without reason and often times seem like a select few are allowed to ignore them... Because they are, because they are friends with the right people and others aren't complaining that high up the chain.

4) What you do out of uniform, does affect you.

5) What your friends and family do, can affect you, even off post.

6) Your commanders (NCO's and officers) can order you to break ties with friends and or family members (or lovers) and you must obey or face disciplinary action for bringing discredit to the uniform.

7) Expect to be treated as a number first, human second and only if they have a the time and you are in a good unit.

8) Sadly you will find that Christianity is pushed to the for front. I was forced to take part in group prayer... Our two Muslim members were forced to remain silent and take part. (the difference between what is said about equality and or freedom of religion and what reality really is.)

9) Document everything. If you get a itch in the back of your throat and go to the medics or seek any medical help what so ever... Do not leave the office without two copies of your reason for being there. (My medical unit lost my basic training paper work and my deployment paper work then blamed me for it.) Further should you later develop issues which could be related to the deployment... The VA is in a better position to help.

10) Unless you are totally down and out on luck... I would reconsider joining any branch of the military. It isn't what the recurters tell you it is like and it will not be fair.


Bonus.

ROEs are rules of engagement. They change daily. They can include being ordered to do nothing while men are huddled behind a jersey barrier taking fire. (the barrier is deteriorating under the fire) My father ran into this very same situation and was ordered not to return fire despite having the means to do so. (civilian considerations)

As stated above. you are a number, not a human being. You are expendable. It is for this reason and related reasons that I will not dawn the uniform again. Not until our military learns that you treat your soldiers as the pole of importance is our soldiers and countrymen above our allies, our allies above the civilians who choose to work in those nations (media, private contractors, ect) and these contractors from friendly nations above the local's.

Currently, the US soldier ranks around where the common cockroach can be found.

The recruiter told me my menstrual cycle would attract hawks and the hawks would get pulled into the jet engine