have+at+one's+fingers'+ends
131pick — I. /pɪk / (say pik) verb (t) 1. to choose or select carefully. 2. to choose (one s way or steps), as over rough ground or through a crowd. 3. to seek and find occasion for: to pick a quarrel. 4. to seek or find (flaws) in a spirit of fault… …
132Ukulele — Martin 3K Professional Ukulele String instrument Classification String instrument (plucked, nylon stringed instrument usually played with the bare thumb and/or fingertips, or a felt pick.) …
