how the hell do i interact with people on here

yall i am so confused i forgot i had this account for like a year but i found it again but i dont know hoe to interact with people. like how do i know if anyones gonna see this?? i have like 3 friends on here from before i left and two of them are the creators acc 😭😭😭i think im a cool person so like hit me up cuz im lonely af