The ghazal consists of couplets, built around a chosen refrain. Each instance of the refrain is preceded by the rhyme. So, if your line ends "with suspicious minds," you'll need to think of rhymes to put before that phrase:

We can't go on together with suspicious minds.
We'll brave the summer weather with suspicious minds.

After the first couplet, where both lines have the rhyme and the refrain, you employ the rhyme and refrain on the second line only. So:

We'll fly to Scotland, amble through the highlands,
Go traipsing through the heather with suspicious minds.

We'll be like goats at the end of our rope,
Straining at the tether with suspicious minds.

And so on. It is a custom of the ghazal to "sign your work" with your final couplet:

Folks look at wee Tommo. They greet his claim
That he's light as a feather with suspicious minds.

It's tricky, but perhaps an illustration will help!