The easiest way to deal with soup is to pick up the bowl and drink from it. It’s possible you will be provided a spoon, but don’t count on it. Your chopsticks can be used to pick up solid food such as tofu, meat, or vegetables. Be careful when drinking your soup — it’s kept hot by bowl covers.
You might notice that those around you are slurping their soup and noodles — go ahead and join in. Some say that slurping makes the food taste better. Part of the fun of traveling is trying new things.