...it [righteousness] shall be imputed, if we believe on him that raised up Jesus our Lord from the dead; Who was delivered for our offences, and was raised again for our justification. - Romans 4:24-25 KJB
Preaching the gospel requires words. (The right words.)
No one can be saved by just watching you. If you never speak of what Christ has done, they'll never know. You can't just wait for them to ask. None seek after God (Romans 3:11 KJB).
If you're saved today a faithful ambassador spoke up and let you know about the death, burial, and resurrection of Jesus Christ as the atonement for your sins and you believed it. This is the only way to be saved.
Romans 4:24-25 KJB tells us that Jesus Christ was delivered for our offences (sins) and was raised again for our justification. It also tells us that if we believe this, that we receive Christ's righteousness on our behalf.
No one can observe this. It is a matter of faith. Romans 10:17 KJB explains that faith cometh by hearing, and hearing by the word of God.
Do you believe this? If you do, I would encourage you to make it known.
"...it pleased God by the foolishness of preaching to save them that believe." - 1 Corinthians 1:21 KJB