I have used gestures with many of our curriculum's (HMR) comprehension skills and they really help the students remember what to do.
For this section of the series, we are studying
Making Inferences (students put 3 fingers down so it looks like an M then put the M over their eye-- M: making --over their eye: inferences- you have to read between what the author says and see what they don't say- that's why your eye is partially covered) That seems long, but it was very effective for them. Their teacher last year taught it to them, and they remembered it and taught it to the rest of the class.
Compare (hands clasped) and Contrast (two fist next to each other) Pretty sure that one is from a WBT video?
Sequence of Events (hands flat palm down, one high, the next lower, then move the top hand under that-- kind of like showing steps)
I hope that isn't confusing, but I think finding gestures to go with might help. Also, if they are non-readers, you can use a read aloud, or even a video (reading rainbow type?) to stop and teach the comprehension strategy so they aren't trying to navigate decoding and comprehension at the same time. If you could find the reading rainbow of a book, go over the comp skills, then get them the book to read through... if might be interesting to see how they do with that.