This is easy to answer off the top of my head. There were a few very popular symbols in the 1960s--you would definitely see these more often than you would see any equivalent now. The most commonly known would of course be the peace symbol but there were a few others. Another would be the ankh which, I believe, is actually thought to be the ancient Egyptian symbol of eternal life but which, forty or fifty years ago, was said to mean love. Another, towards the end of the decade, would be the ecology symbol. Like the 60s ankh, this fell out of favor pretty quickly but, at the time, it was very popular. It was normally presented in green on white and was a oval presented lengthwise with a bar across it. If you search for ecology flag you can find a variation. The last symbol I will mention is the one that seems, oddly, to have had the most lasting place of prominence. It, of course, is the smiley face. There are many fights fought over where it originated but early on, and perhaps initially, it does seem to have been part of a small, regional ad campaign.
As for slang terms of the 60s, I have listed many elsewhere on this site. I will put a link in the links section of this post. Although I have to warn you that that site is not entirely accurate, you could do a whole lot worse than begin your search there. If you really have a question about a term after you find it, just ask me another question and I'll see if I can verify it for you.
The 1960's saw popular movements or fads, such as the Beatniks, the Hippies, and the Bikies, and popular manners of speech were associated with these behavioral trends.
A popular saying from the Beatniks was: "cool, man" and "I dig it".
Symbols- peace sign, smiley face, etc
EDSEL
the other bands that were popular in 1960s was the beegees
José Feliciano
Color Photography was not popular before the 1960s because of the price barrier.
Stokely Carmichael
Some popular sayings in the 1970s were: "Keep on truckin'", "Right on!", "Far out!", "Groovy", "Bummer", and "Peace out". These sayings reflected the counterculture and social movements of the time.
EDSEL
In the 1960s
what were some popular accessories in the 1960s
monoply
Yes in America.
Yeah, That's the ticket !
Hello angel face
Spam
Tennis, Baseball, and Football.
Popular sayings of 1956 included "the bee's knees" meaning excellent, "cool as a cucumber" meaning calm and composed, and "living the high life" meaning enjoying a luxurious lifestyle.
What's up Alligator-after a while crocodile