Answer: there really isn't a difference your just not cool with them i have people who are just like that i got friends that i"m cool with and i got people i know but not cool with them its kinda like you just talk to them
Falling to understand the difference between a friend and an acquaintance can easily become the biggest detriment to growing as an individual. Sound heavy but it's true. we deal with so many people on a daily basis that we get catch up in the moment without awareness of whether we should be treating the people in front of us as a friend or an acquaintance.
Wind, water, tide and muscle - both animal and human - provided sources of energy that are still available to man and are still used to power simple machines in many parts of the world today.