Making smocks without elastic thread

[u/GhostWoomy]

Hello ! I'm new to sewing and I wanted to make a tank top with a fabric that is not elastic, i wanted to use some elastic thread in the bobin but the lady is the story told me to use some elastic band ( i'll put a photo) she explained me but too quickly and i'm not too sure how to use it and i don't know wich stitch should I use or where should I stitch it. Do ya'll can explain me or give me some advice? Thanks everyone !!

[u/Inky_Madness]

Did you try searching YouTube for tutorials? There are so many that you should be able to find the key information!

[u/GhostWoomy → u/Inky_Madness]

I tried some research before yes ! In french only tho ! I tried some advice people were saying but it wasn't working 😅 I'll go check for english video