Squares (8)/octagon

Question 1

Two steps at a time

Answer 1

One in 3 corners, two in one (as if one step in (4) )
Middle: opposite group of two 
M  -   O
-         -
O   -   oo

Question 2

1-2-3-4

Answer 2

No steps between four, they are in a line. The loner is one step from one side and two from the other.
Middle: the one two steps from the loner
O   O   O
-          M
O   -     -

Question 3

Three steps at a time

Answer 3

One loner opposite empty, two groups of two one either side of the empty opposite loner.
Middle: loner. Note, could also be TWO STEPS THEN ONE in which case Middle is different, so check.
M - O
- - O
O O -

Question 4

One step at a time

Answer 4

No spaces between steps, all in a line
Middle: the one in the middle 
-   O   O   M
-              O
-    -     -  O

Question 5

Two steps forward, one step back

Answer 5

No spaces between steps, the third (or second depending on perspective) is a group of two.
Middle: the one before the group of two, in between single and double.
O M oo
- O
- - - Note, lower case = two in same spot

Question 6

Two steps, then one

Answer 6

Has a loner opposite nothing. On either side of the space opposite loner, two dots with no spaces between.
Middle: one of the two dots closer to empty opposite loner.
Note: could also be THREE STEPS AT A TIME in which case Middle is different, so check
O - O
- - M
O M -