Will I be able to snowboard park?

When I was younger, maybe ages 8 to 11 I would snowboard a couple times a year and could ride ok, I'd make it down the mountain without falling more than once or twice maybe. I have not really snowboarded since, except for hitting a rail two or some small jumps on a back-yard set up Now I'm 17 and my friends who are all experienced skiers and snowboarders want me to go up to a mountain with them for a weekend. I have a snowboard and boots I can use but my issue is this; how hard do you think it'll be to keep up and will I embarr myself. Is snowboard hard to re-learn? I'm not planning on goin for any big tricks, but I've never snowboarded park before and haven't even been to a mountain in 6 years. I'd be happy if I can just hang and not slow them down an make them wait for me. How do you think I'll fair? or is it easier or harder than I'm making it out to be in my head?