alive to (?.)
- appreciative of
- apprised of
- awake to
- aware
- aware of
- behind the curtain
- behind the scenes
- cognizant
- cognizant of
- conscious
- conscious of
- hep to
- impressible
- impressionable
- impressive
- in the know
- in the secret
- informed of
- let into
- mindful of
- no stranger to
- on to
- perceptive
- privy to
- receptive
- seized of
- sensible
- sensible of
- sensible to
- sensile
- sensitive to
- sentient
- streetwise
- susceptible
- susceptive
- undeceived
- wise to