Connotations:

Minor - Youth - Juvenile - Teenager - Youngster

I think that minor and youngster are patronising terms. Both can be used to look down on people, so they have negative connotations, and most people would not be happy with being called one of them. As well as this, juvenile also has a very negative connotation, as I, personally, relate this to complaining, for example that someone is being immature. Teenager and youth should not have negative connotations, becuase that is a simple term for someone classed as that, however the use of such words in the media is often in a bad light, and therefore people are weary of people who are known as the 'youth' or a 'teenager'.

Boy - Man - Gentleman - Male - Lad

Man and male both have fairly neutral connotations, as there is little use of them in society, so people just take the words for what they are. However, 'boy' implies that a male is immature and not an adult. This is a negative connotation because often people want to be adults, so it can be used as an insult toward a male. 'Lad' also has differing connotations, from a male perspective, it is a word used to describe a friend, and is usually used as a compliment. On the other hand, from a female perspective, they do not want a boy to be, what they consider, a 'lad', because this usually involves other women. 'Gentleman' has a positive connotations, as this is what society says a male should strive to become, so to be called a 'gentleman' is usually used in a positive manner.