Do what someone else is doing.

Roget 19: imitate, copy, mirror, reflect, reproduce, repeat; do like, echo, reecho, catch; transcribe; match, parallel.    mock, take off, mimic, ape, simulate, impersonate, personate; act etc. (drama) 599; represent etc. 554; counterfeit, parody, travesty, caricature, lampoon, burlesque.    follow in the steps of, tread in the steps, follow in the footsteps of, follow in the wake of; take pattern by; follow suit, follow the example of; walk in the shoes of, take a leaf out of another's book, strike in with, follow suit; take after, model after; emulate.    ... show more