it happens to me at work at the bistro i work at with all the staff, ill start a conversation and stumble over my words because im nervous and i know it freaks them out, i can tell by their facial expressions that they want to go and i come across as serious or i cant think of the right words fast enough and at its worst i would sometimes make up a scenario mid conversation because my thoughts were bundled up and confused, so i would just say anything, so at the moment i try and slow down alot more and make sure im genuine, its better to be honest then make up words just to look interesting, and i know what you mean about feeling like a robot, you try so hard to make an impression that the words dont come and that person responds all jokingly and goofy and i respond with this serious response, and i beat myself up internally and i have to say working in a bistro or a bar can be a nigtmare for people with SA, i need to get out of that job because its helped as much as its been awkward, its all about practice letting loose and feeling relaxed in conversation is such a challenge.