HK fair worry

Time is off quickly really。 Now is April。 Soon several days later I will go HK for our fair with company members of our business dept。 Several monthes ago， I started to ready for it。 But until now， I feel I have done nothing。 It‘s the first time I go to HK， it’s the first I join the fair， it‘s the first time I need negociate with foreign customers face to face。 Frankly， I am exciting but more nervous。 My boss told us only good attitude is ok。 But I am afraid that when someone ask me about our producs， I can answer correctly and quickly， even if I can’t understand them。。。。 I am worry， always I want find friends to help me here who can share his experience with me and help me pratise my oral english。。。。。