S: (v) follow (to travel behind, go after, come after) "The ducklings followed their mother around the pond"; "Please follow the guide through the museum"
S: (v) lag, dawdle, fall back, fall behind (hang (back) or fall (behind) in movement, progress, development, etc.)
S: (v) tailgate (follow at a dangerously close distance) "it is dangerous to tailgate another vehicle"
S: (v) shadow (follow, usually without the person's knowledge) "The police are shadowing her"
S: (v) carry (pursue a line of scent or be a bearer) "the dog was taught to fetch and carry"