Focus on the present, not the past. You've experienced what recruitment is like, so now you now what to expect. Be as positive as can be and enjoy yourself. I know when I went through (well, and when I was an active recruiting) I said some things that came out wrong or stumbled on myself. I would just make a joke and play it off as nothing. Everyone will have nerves during recruitment. You're not the only one.
*Hugs to the nervous PNMs*