First TRI tomorrow!

I am going for my first tri in Newport Beach tomorrow! I'm a little nervous about navigating the swim and using the clip ins for the bike. I figure if I'm not comfortable with the clip ins, I'll just use my running shoes. No biggy! Woo- I volunteered at registration today for 4 hours. I got to see all the competitors and I hope I do well! Balls out...That's what we say in Crew. Wish me luck!