megilot not read from a klaf

If you attend a minyan where the haftara (or any of the megilot)are not
read from a klaf, what is the kahal’s practice (and has the shul rav
directed this) during the haftara reading? 1. listen intently to each word
2. read along word for word with the one reading from the bima 3. read by
oneself at their own pace 4. other ________.
KT
Joel Rich

My minyan just got a Yeshaiah kelaf, but until then, we did (1) and (2)
by reading quietly to ourselves along with the baal qeri'ah.

I grew up in a chassidish shteibl, where they did (3).

Tir'u baTov!
-Micha