In this example (pattern) the beads are worked to the front of your piece and are only place every other row and every other stitch in the beading row.  First thing you need to do is to get your beads threaded onto your crochet thread.  
The easiest way I have found is to get a large eye beading needle from most craft store’s jewelry isle.  A large eye beading needle is exactly what it’s named.  It is a long needle, pointy at both ends with a very large eye in it’s center to thread your crochet thread into.
The needle is very thin so most beads will slide over the needle and onto the crochet thread.

Large eye beading needle is on the left and a regular needle on the right.

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