S'il vous plait-this is used in formal speaking or when addressing a large group of people or persons in authority of you. S'il te plait-this is used when addressing people you know very well for example friends

The best word for this situation would be "socializing"

Verbs are action words...such as to run, to jump, to play, etc.

Haiku is a Japanese type of poem..it consits of 3 sentences (most of them)..and it is usually used to express feelings of ultimate joy on things like a view of sunset, etc.