Sarcasm is basically mockery. If someone is being sarcastic, then they are mocking or sneering at something. Sarcasm often involves a statement being made which is the opposite to what the person actually means. For example, if someone says 'Well isn't that just great' they are actually mocking the situation and mean the opposite.
How easy sarcasm is to pick up on depends on experiences with the language or accents. For example, if you were attempting to be sarcastic with someone who wasn't too familiar with your language, then they may not pick up on the fact that you were being sarcastic.
Sarcasm is also difficult to express in writing, which is why writers may use italicised words to emphasise it. People also use emoticons and mark-up language tags.
How easy sarcasm is to pick up on depends on experiences with the language or accents. For example, if you were attempting to be sarcastic with someone who wasn't too familiar with your language, then they may not pick up on the fact that you were being sarcastic.
Sarcasm is also difficult to express in writing, which is why writers may use italicised words to emphasise it. People also use emoticons and mark-up language tags.
