Do your own thing and very importantly do not pressurise yourself, you're there to enjoy it and you want to be coming back the year after for more, The first laps are not so much about pace but getting you and your machine comfortable with the task, don't be getting into corners too early and then come out off throttle(all arms and legs as I got told hahaha), don't follow quicker people as distance travelled versus your reaction time will get you into a lot of trouble, note any places you're struggling with and if possible go and sit in the hedge and watch where on the track the quicker people are putting their bikes before, mid and on the exit. Maybe have a look at Brian Reid's TZ250 lap on youtube - the Duke video is the best, easy to watch as it's not a 1000cc missile but tells a lot about corner speed, smoothness and bike placement.