(literally) to take or put one's hand out / (figuratively) to try to participate in; to foray into; to try one's hand at / (figuratively) to attack (in a fight)

(slang) lame, uncool

(baseball, softball) batter / (cricket) batsman

(slang) lame, uncool

calculate / estimate intrests

calculation

sounding someone out / (medicine) percussion

sound out someone / (medicine) do percussion

burst into tears, begin to cry

help, a helping hand, assistance