Answer:
it’s not really possible, so i’d say hard.
Step-by-step explanation:
happiness is relative. that means that what some people might be happy about, others are sad about.
for instance, if someone got a cookie, and was excited, you’d assume if that persons sister also got a cookie, they’d get excited too. but, what if their sister wasn’t as big a fan of cookies?
does that make sense?
hope i helped!