Just remember one thing...keep everything away from the tip of your penis. It only takes one microscopic cell of STD or STI to cause an infection. A condom covers you for BJ and FS but be sure you remove it very carefully and if you can shower right after you can reduce your risk level. Don't wait for your provider to clean you up with a towel that may or may not be sterile.
A good practice is to place sanitizer or alcohol at the base of your penis prior to your visit. This will help kill any STD or STI cells that contact your skin below the condom.
Whatever you do skip any "bare" activities. A bare BJ can get you Herpes 2 at the very least and an long menu of STDs and STIs.