2 synonym groups for Alertness

be alert, be vigilant, be watchful, be on guard, attentive, be cautious, be wary, be on the lookout, be observant, be on the watch, be on the alert, be on one's toes, be ready, be prepared, be on the ball, be sharp, be aware, be heedful, be circumspect, be on the qui vive, be eagle-eyed, be hawk-eyed, be on the qui vive for, be on the qui vive about, be on the qui vive against, be on the qui vive to, be on the qui vive in, be on the qui vive at, be on the qui vive over, be on the qui vive around, be on the qui vive near, be on the qui vive towards [x]

monitor, observe, keep an eye on, look out for, on the lookout for, be alert to, be vigilant for, be on guard for, keep watch for, be watchful for, be on the watch for, keep a lookout for, be wary of, be on the alert for, be on the lookout, be on the watch, be on one's guard, be observant of, be attentive to, be on the qui vive for, be on the alert, be on one's toes for, be on the qui vive, be on one's toes [x]