After the maariv amidah

Hi,

After the amidah at the evening maariv service, one should wait until the chazan reaches Titkabel in kaddish before taking three steps forward. However, if this would involve a long wait then one may step forward after waiting the time it takes to walk four amot (about seven feet).

(Rivivot Ephraim 1:176)

Have a great day,
Mordechai