This works best on an "Average Guy/Girl" play through where you're not going for something like "Debauchery Without Delay" since it will take a little while in game time.

Check your shop to see what smoothies are available and then pick a pair of girls from the finder that are compatible with those types. Give them the smoothies, rinse and repeat to level up your different types of affection; go ahead and give them their shoes and special gifts that are automatically available too but don't sweat those too much.

If you run out of seeds, which you will, cheese a few dates. DO NOT SUCCEED THEM! Get as close to the goal as possible before upsetting/exhausting both girls in order to keep the affection goal low on dates but still get some seeds.

Once you've raised your affection levels a bit, maybe not all the way since that'd take a while and isn't necessarily required, talk to your chosen pair and give them food items to raise your number of moves, then play as normal, be brave, do your best, and don't ♥♥♥♥ it up! Or do. This is Hunipop after all, that's kind of the point.