Most likely you will be asked some questions about your health (and whether you smoke, drink, etc) and family health history (cancer, liver, etc), she'll weigh you, give you a blood pressure check, etc. She may ask if you've taken any hormones previously - it's important you answer truthfully. She may check around your chest area for any glandular development. There's a high likelihood she'll check the size of your testes, this will gauge how much of a testosterone factory you have down there. Unless you have already had a blood test she'll probably send you off for one and it won't be until she see's the results that she may start you on a low dose with a follow up in six or eight weeks.
Good luck!