WordNet sense 1 (bearing in mind; attentive to):

mindful

WordNet sense 2 (aware or knowing):

witting

WordNet sense 3 (aware intuitively or intellectually of something sensed):

sensible

WordNet sense 4 ((followed by `of') showing realization or recognition of something):

conscious

WordNet sense 5 ((usually followed by `to') showing acute awareness; mentally perceptive):

alert, alive, awake

WordNet sense 6 ((sometimes followed by `of') having or showing knowledge or understanding or realization or perception):

cognizant, cognisant