Voice would be top priority, I guess. I've mentioned before that even with voice training, some can't shake the "trans voice", which, even though it might be in "female range" will get you clocked no doubt. If you're having a hard time with it then as a last resort, fix it. However, I'll emphasize again that "talking female" relies as much on inflection/mannerisms/expressions as it does on pitch. Not to mention, that if those mannerisms are unnatural/forced, then people will surely hone in on those. It sometimes takes a lot of training to perfect these things, especially if you are a late transitioner trying undo years and years of male habits.