help for magic wand tool in adobe photo shop

[Cute Sense]

dosto mujhe magic wand tool k bare main kuch help chaye ,,
main jab koi tasveer ka back ground change krna chata hoon to ye meri marzi ki matloba jaga ko select nhi krta hai ,,,yani k mjhe apni mrzi ki jgha ko select krna hai aur phr cut bhi krna hai ,,,to dosto main es tool ko apply krne k baad konsi short key board use kroon jis se main photo ki ache bal k behtreen tareeqe se background change kr skoon jis se body ya clouth ka koi bhi bareek hisa kharaab ya cut na hoo
thnklaas to alll bro

[Hacker Boy]

ap lesso magetic tool use kren bk ground change k liye than ereas tools se or zaida use clear kr len.

[legendclaw24]

helpp

[Cute Sense]

bhai jaan mjhe magic wand tool ko apply krne k baad selection ko thora thora change kr k dekhna hai k konsi selection behtar hai yani k apply hone k baad selection jo k automatic hoti hai hum usko kis trhaan change kr sakte hain auto selection ko aur wo bhi magic wand tool ki
thnx

[Cute Sense]

help me plzzzz