Stealing blinds in a poker tournament is a way to deep-stack your chips. You will have to know the right way of raising to try and win the first two bets of the hand. Doing this well will slowly add chips to build your stack. Being careless may drive you to leaving the table.
The right time to steal the blinds is when you can be the first to wager into the pot. However, if there is someone who raises or calls in front of you, then don’t attempt to steal. When stealing the blind systematically with anticipation, be the first to raise in a rather late position.