Only a fool looks at the lizardfolk and sees nothing more than scaly humanoids. Their physical shape notwithstanding, lizardfolk have more in common with iguanas or dragons than they do with humans, dwarves, or elves. Lizardfolk possess an alien and inscrutable mindset, their desires and thoughts driven by a different set of basic principles than those of warm-blooded creatures. Their dismal swamp homes might lie hundreds of miles from the nearest human settlement, but the gap between their way of thinking and that of the smooth-skins is far greater.
Despite their alien outlook, some lizardfolk make an effort to understand and, in their own manner, befriend people of other races. Such lizardfolk make faithful and skilled allies.   Lizardfolk are a little bulkier than humans, and their colorful frills make them appear even larger. Your size is Medium.

Alien Minds

The lizardfolk's reptilian nature comes through not only in their appearance, but also in how they think and act. Lizardfolk experience a more limited emotional life than other humanoids. Like most reptiles, their feelings largely revolve around fear, aggression, and pleasure.
Lizardfolk experience most feelings as detached descriptions of creatures and situations. For example, humans confronted by an angry troll experience fear on a basic level. Their limbs shake, their thinking becomes panicked and jumbled, and they react by instinct. The emotion of fear takes hold and controls their actions. In contrast, lizardfolk see emotions as traits assigned to other creatures, objects, and situations. A lizardfolk doesn't think, "I'm scared." Instead, aggressive, stronger creatures register to the lizardfolk as fearsome beings to be avoided if possible. If such creatures attack, lizardfolk flee, fighting only if cornered. Lizardfolk aren't scared of a troll; instead. they understand that a troll is a fearsome, dangerous creature and react accordingly.
Lizardfolk never become angry in the way others do, but they act with aggression toward creatures that they could defeat in a fight and that can't be dealt with in some other manner. They are aggressive toward prey they want to eat, creatures that want to harm them, and so on.
Pleasurable people and things make life easier for lizardfolk. Pleasurable things should be preserved and protected, sometimes at the cost of the lizardfolk's own safety. The most pleasurable creatures and things are ones that allow lizardfolk to assess more situations as benign rather than fearsome.