[It's very unclear whether her humans would've mentioned TMNT or some off-brand version to her. ... Hopefully so, otherwise Pidge has failed as a nerd.]
Pleased to meet you properly, Leonardo.
Other options:
That icon was supposed to be a nice pleasant smile like this one, WOOPS
[It's very unclear whether her humans would've mentioned TMNT or some off-brand version to her. ... Hopefully so, otherwise Pidge has failed as a nerd.]
Pleased to meet you properly, Leonardo.