Try adding a bit of playfulness to your regular café visit. Put up a foodporn show and enjoy the attention of the gawkers.
Order ice cream or dessert with cream — anything that pleases your partner and can get you aesthetically soiled.
Feed your partner: if a little bit of the melted ice cream or cream gets on the tip of his/her nose or stays in the corners of the lips, lick it up. Take the cherry off the cake and share it with a kiss.
Keep an eye on other café patrons. Try to make it look erotic and pleasant, rather than spoiling the appetite of others. Notice the concerned looks, enjoy the attention and each other.