Friendly is not a word that is usually ever associated with our green friends from Yemen. I’m going to advise for you to continue to try hand feeding (try it with the desirable hornworms or silkworms). My veiled girl Stella has been with me for almost 7 years! She has and will not ever come out to me on her own. I continue to work on our trust thru hand feeding and gentle slow interactions. She will still hiss at me, puff up and often try to bite. Usually she will first try to eat my fingers, thinking they are fat worms and when she realizes they are not, they are attacked. On a very good day, she will reluctantly allow me to touch her chin spikes for a second or two, before posturing to bite. If I do hold her, she is pretty calm and understands that I will not hurt her. This doesn’t mean she enjoys it though.
On the opposite side, one of my panther boys, Mango, will run over as soon as he sees me open his door and tries to climb out onto me. Having ruled out all possible reasons for this, I’m left to believe he just likes sitting on my hand.

My others are at their own degrees of how they allow me to interact with them.
The primary thing I’m using too many words to explain, is that we have to accept each chameleon on their terms. We do what we can for them to learn that we can be trusted not to harm them, and the rest is up to them. I respect my chameleons’ boundaries, which in turn reinforces to them that I am okay.