BUOY
ˈbo͞oē,boi/
noun
plural noun: buoys
1.
an anchored float serving as a navigation mark, to show reefs or other hazards, or for mooring.
synonyms: float, marker; More
bell buoy, nun buoy, sonobuoy
“a mooring buoy”
verb
3rd person present: buoys
1.
keep (someone or something) afloat.
“I let the water buoy up my weight”
cause to become cheerful or confident.
“the party was buoyed by an election victory”
synonyms: cheer, cheer up, hearten, rally, invigorate, uplift, lift, encourage, stimulate, inspirit; More
informalpep up, perk up, buck up
“the party was buoyed by an election victory”
antonyms: depress
cause (a price) to rise to or remain at a high level.
“the price is buoyed up by investors”
2.
mark with a buoy.
“a buoyed channel”
Origin

Middle English: probably from Middle Dutch boye, boeie, from a Germanic base meaning ‘signal.’

I was thinking about the verb form of this word. This is what we do for each other as we walk. It fits perfectly. Felipe.x