CLRED TO THE RAMP AFTER LNDG ON RWY 08 AT LBB; PA28 PLT TAXIS ON RWY 35/17 RATHER THAN SIMPLY CROSSING IT.

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LANDED ON RWY 8 AT LBB AND RECEIVED CLRNC TO TAXI TO THE RAMP FROM RWY 8 AT TXWY R. CLRNC WAS GOOD FOR ENTIRE TAXI; INCLUDING RWY 35L/17R. WHILE APCHING RWY 35L ON TXWY J; CLRNC WAS GIVEN TO A DISTANT ACFT TO LAND ON RWY 35L. IN ORDER TO BE SAFE; I CALLED TWR TO CONFIRM AUTH TO 'CROSS' RWY 35L AT TXWY J; WHILE MY ACTUAL INTENTION WAS TO USE MY PREVIOUS CLRNC TO TAXI FROM TXWY J TO TXWY F VIA RWY 35L. TWR TOOK MY REQUEST TO 'CROSS' RWY 35L AS LITERAL; AND WHEN I ARRIVED AT TXWY F VIA RWY 35L REMINDED ME THAT CLRNC TO CROSS A RWY; MEANS I CAN CROSS IT; NOT GO FOR A SUNDAY DRIVE ON IT. FACTORS: CLRNC FROM RWY 8 AT TXWY R TO THE RAMP (NEAR N END OF TXWY E) ALLOWED ME MY CHOICE OF RTES. BY 'CLARIFYING' WITH GND MY CLRNC TO 'CROSS' RWY 35L; I DID NOT ACCURATELY REPRESENT MY INTENTIONS OF RWY 35L TXWY J TO TXWY F. RWY 35L TXWY J TO TXWY F SEEMED REASONABLE BECAUSE PREVIOUS CONSTRUCTION HAD CLOSED TXWY J; AND I HAD ONLY FLOWN ONCE SINCE IT HAD RE-OPENED. I HAD FLOWN FOR OVER A YR WHILE IT WAS UNDER CONSTRUCTION; HOWEVER; AND REVERTED TO THIS MENTALITY WHILE TAXIING. SINCE THE ARPT WAS RELATIVELY QUIET; THIS INCIDENT CAUSED NO SAFETY ISSUES. IT DID HOWEVER MAKE ME REALIZE THE IMPORTANCE OF 2 THINGS: SAY WHAT YOU MEAN; AND DO WHAT YOU SAY WHILE TALKING TO TWR/GND. ALWAYS RE-FAMILIARIZE YOURSELF WITH THE CURRENT OPEN AND CLOSED TXWYS; EVEN IF IT IS YOUR HOME ARPT. CONSTRUCTION CAN TAKE A LONG TIME; BUT WHEN THE TAXI DIAGRAM CHANGES; AS PLT YOU HAVE TO BE ON THE SAME PAGE AS THE TWR.