one true measure is read their aura from time to time
you'd be amazed... at what you can see and tell
folks change alot as they go thru each day and even moment to moment
but the overall pattern will remain the same.
i am amazed at many of the tv folks assortment of aura.
you can put out words/ and even do a great many things/
bu the aura reflects the inner and is a much truer accurate guideline to who you are dealing with..
my 2 cents worth anyhow..
i think every one should develop this ability strongly / it is so simple to do..
and even works as a good guide to things you use
like crystals to see exactly if they need recharging
or are at super good energy ..
and yourself also..or your kids/
i read myself alot /to make sure i am at good energy as best i can be..
i look at energies of food i eat etc..
it used to be folks picked a spiritual leader by their auras.. we sure have grown far from that..
yet the ability is still there just simply with the practice of it.
have you considered checking out this guys aura?
at various times?
see what is consistent/ esp when at moments when not talking/ to a group...
best character assesment i know.
of course hand in hand with rational logic and reasoning .
weigh both sides with your mind/ and with your senses