You need to be a little bit more accurate... As of summoning, you mean INVOCATING (like a medium), or EVOCATE (make him visible and be able to interact) either way... summoning depends mostly upon you, the only part that depends on the summoned one is if it wants to be summoned... if it does...

I could answer... Well... I know how to move in the embassies world... partial job upon previous appointment as Spanish-English & viceversa interpreter for tourists... and i have been invited to events... THERE you could see the live image of cynicism, hypocrisy among others xD and everyone...

I would say no... I have the gift to see auras and chakra flow... and some basics on magic. Curses, and/or any sort of magic needs the use of aura, which tend to not be enough without chakra development, at most theoretically they could do at most an evil eye curse, yet... only humans seem to...