How to easily connect to this PCB?
yes, assuming you wan this for temporary connection for application like testing etc. There are connectors/pins available which are spring loaded. take breadboard (general purpose) or copper clad pcb, make holes to match your PCB pin pitch (use drill), isolate those holes using knife cutter , Mount spring loaded connector. make you wire connection to this copper clad PCB.
Now your bottom board is ready which has spring loaded connector, Now all you need to do is place this DUT PCB (in pic) on top of your new created PCB match pins and you are all set.