Front derailleur doesn't change from grear 1 to gear 2
If you don't find the "barrel adjuster", what you could do is pull the cable a little bit more.

Find the bolt on the derailleur that holds the cable.
Just in case, check that if you pull the cable by hand the derailleur cage moves outwards. If so, set the derailleur to the lowest gear.

Hold the cable with pliers, and with a hex key release the bolt slightly, then pull the cable to make sure it's very tense. (It won't go too far, just a little.) Tighten the bolt again as you still hold the cable with the pliers.