Speech Act and Conversation!

Language in use is really interesting matter. Language is no doubt an effective tool to do things, but most of the time, it is ambiguous that means only language cannot do anything unless and until you don't know the context. To get the semantics of language you must know the context.Because same pragmatics of the linguistic structure could give various semantics. For example a sentence, "I have to tie shoe" could have different meaning, such as if a friend asks with his friend about to go to movie and the friend who is working in the shoe factory might say this sentence to deny the offer of watching movie as he has a business to tie shoe in his factory. Same sentence can be the acceptance to the situation, such as give me a minute I would be ready in a minute after tying my shoes. So the same linguistic structure give different meaning as per the use in the different context.