Having said the Eqamah, you must declare the Niyyah, which is the intention to perform the prayer.
In the intention, you specify the salat you are performing and the purpose for doing so.
For example you say, “I intend to perform the two- intend to perform the two-rak‘ah Fajr, seeking nearness to Allah Almighty.”
You do not need to utter these words verbally; it is sufficient for you to make the intention mentally.
Having specified your intention, you say the Takbirat-Ehram (signals the start of the salat)
Ehram, which is Allaho Akbar, while at the same time reaching your hands to the proximity of your ears with the palms of your hands facing away from you, and then back to the normal resting position.