Even though there are laws against underage drinking, it still happens quite frequently. which strategies would you to avoid being in a situation where underage drinking is occurring? also, how would you effectively refuse an offer of alcohol?

Think about how it would affect your future if you got caught. Some employers may not even higher you because under your record it shows "underaged drinking." If offered alcohol, you can make up lies saying "It makes me sick", or "My parents test me every month", also you could say "Not in the mood for drinking tonight".