Installed deck clips along the joist on the edge of the first board.
Then slip the leading edge of the 2nd board snuggly into the clips .
Install the clips into the 2nd edge of the 2nd board on every joist.
Use care that you only drive the screw down until it is level with the clip. Do not screw it down too tightly.
Once this 2nd clip is installed on the 2nd board, go back to the nearest clip between the two boards and tighten it down firmly. Now, the clip will press the boards into the glue to seat them permanently.
Repeat the above steps until your deck is complete.