*Somewhat surprised, Mark began scanning Isis again.*
Fascinating...Hyumon subject appears to observe social mediums.
*He smiles, this time making eye contact.*
Apologies for any perceived social taboo observed in my behavior. I'm not fully acclimated to your type of species or it's customs. 
*Slightly puzzled.*
...Daahd...hmm. Is this the designation of your maternal unit?