Gateway drug
drugs such as ecstasy

Marijuana

Explanation:

Is considered to be the largest known gateway drug there is. Many will also consider alcohol to be a "gateway" due to its ability to impair your judgement, therefore being more acceptable to try drugs.

for respect usually. some people might be little awkward if you meet or some would be different. usually   you dont love people when you meet them depends on the type of person.

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