This isn't a very subtle man, so obvious signs such as telling you, wanting to spend a lot of time with you, and getting jealous if you look elsewhere are reliable indicators.
While being relatively unemotional or clingy, he isn't the type to play mind games with you deliberately however Sagittarius men do tend to be very cautious about committing, which can come across as being hot and cold.
This is always a hard question to answer, as one person's idea of kinky can be very different to someone else's.
Individuals also vary a lot, so this is a bad area to generalize in.
One of these is that you get to see one side of someone very clearly: their personality.
I have a list of the top 400 most famous Sagittarius celebrities and historical figures.All things being equal though, Sagittarius men are amongst the more kinky, yes.He is likely to be very attractive and sexy due to his zest for life, and desire to explore and learn all about it.On the negative side, he can be seen as lazy and undisciplined.Lacking a deep understanding of emotions he can also be seen as too blunt or shallow by more emotionally intense signs (and as a breath of fresh air to less emotional ones!He values independence and freedom, manifested both in a liberal open mindedness and a dislike of feeling trapped or obligated.