Confirming Lucidity

[Mantrada]

Last night i had a dream which i think was my first lucid dream but i am not sure. It involved jumping very high and over a random person and i remember thinking that i was having a dream, which is why i jumped over him but I dont remember becoming lucid at any specific point and I did nothing abnormal in an attempt to induce a lucid dream. How can I be sure a dream was lucid and that i was in control of it? I havent made any attempts to recall my dreams recently as they often just come to me during the day or in the morning when i wake up.